Posts Tagged opensource

Freedom or Stability?

Windows and Mac users can download and install the newest Firefox version with a couple of mouse clicks.  With Ubuntu Linux, however, no Firefox 3.6 is available in the Canonical package repository.  Even worse, none of the developers plan to add any new Firefox versions to the repository until the next Ubuntu release.  So, I attempted to install precompiled versions from the Mozilla website and the Ubuntu Firefox development build repository, but both installs really messed up the fonts, making them blurry and hard to read.

I tried desperately to fix the fonts, summoning the help of the Ubuntu forums.  I tried editing font rendering settings in my local .fonts.conf.  I deleted the font cache and reconfigured fontconfig.  I tried adjusting a font quality parameter in Firefox’s about:config. For some forums posters, these solutions worked.  For me, nothing seemed to help.  Finally, I was able to get Firefox 3.6 installed with normal fonts by downloading and compiling the source code and installing the binaries compiled on my own system.

I’m not the only one who is frustrated by this.  This was probably the first time I’ve resorted to compiling a third party application from source since first using Ubuntu and Debian in 2006.  Normally, it’s just apt-get install whatever program you want.  The package manager automatically updates everything and keeps out of my way, rarely nagging to reboot unless the kernel was updated.  The package repository was one of the main reasons I switched to Linux in the first place: an easy, single step way to install anything and keep it up to date.  No hunting for a download website somewhere on the internet or clicking through a bunch of dialogs in an install wizard.

With such lag before new third party applications get added to the Ubuntu software repository, plenty argue that Linux isn’t ready for the mainstream.  I agree completely.  Most people will have to go through similar steps as I to get many of the latest third party applications installed, and it can be a real pain.  However, in Linux, I am free (as in speech) to customize or rewrite any part of the operating system and share my changes with others.  It also gives me a free (as in beer), top notch development environment for my work.  The problem is that such freedom comes at a cost: tinkering to get everything to work correctly.  Every time I’ve upgraded to the latest Ubuntu version, something doesn’t work and has to be fixed.  In another example, I recently installed the netbook remix version on my netbook and was rewarded by a flickering screen, which was fixed with a BIOS update.

Mainstream users just don’t want to be faced with flickering screens and BIOS updates, they want something that just works.  Consequently, they are willing to give up some of that freedom (as in speech and beer) to have a device that boots normally and doesn’t have font rendering issues when they install the latest version of a program.  Such users are better off with an Apple, and indeed Apple charges them a price in terms of money and control.

The iPad has launched a storm of controversy over its lack of user control.  Essentially, the device is a large iPhone, except there is no phone.  All applications must be purchased from the Apple-controlled App Store.  The real question is: do  mainstream users really need fine-grained control over their devices?  One comment on a Slashdot post really makes an interesting argument:

What has choice done? It’s given us the chaos of spam, malware, worms etc…  The average consumer should get a locked down device such as what Apple are proposing, a limited device with a closed market. And you do realise this is really no different to a games console.  Full blown computers should be reserved for those of us who know how to manage them responsibly…Computers as they are today are simply too complex and difficult to manage for the average consumer, so you either give them something simple or you take the management out of their hands.

Combined with the “Linux is not for mainstream” argument, this really makes the case that perhaps devices that work well but allow little user freedom may be the best for most people.  Most of the time, it’s the best choice for me.  I’ve got a phone, media player, GPS device, and others that I want to just work and perform a very specific function.  In these cases, I would rather they perform their jobs reliably than be extensively customizable.  However, I do think that the option to exercise greater control should be there for those who want it, no matter how few.  In the case of PCs, I’ll take that option, stick to Linux, and keep compiling from source when I have to.

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Removing Ubuntu annoyances

Here are a few Ubuntu 9.04 annoyances that I finally got around to addressing:

Constant “routine” disk checks on boot

Ubuntu 9.04 is lauded by critics for its improved boot times, and in most cases my machines running it boot to the login screen in less than 45 seconds.  This is a solid improvement and it’s supposed to be under 10 seconds by the release of 10.04.  The improved boot time in 9.04 is great: when I turn my computer on, I want to use it, not wait for an hour while the hard drive clicks and groans and the mouse cursor spins endlessly.  It’s all well and good except that about every tenth boot takes forever thanks to an annoying disk checking routine.  Are drive failures really that common that my drive has to be picked over by a fine-toothed comb every week?  If so, a new storage technology is desperately needed.  In the past 20 years or so, I’ve only had one memorable drive failure.

So, to fix the irritating disk checks on boot:

sudo tune2fs -c 0 /dev/s
da1

-c specifies the rate at which your disk is checked on boot and /dev/sda1 is your boot partition.

PC Speaker

Aside from the Caps Lock key, the PC speaker is an extremely annoying and useless “feature” of nearly every PC.  Depending on your configuration, quite a few things can cause the PC speaker to beep, such as hitting backspace in a console when you haven’t typed anything.  For some reason, when I shut down the computer using the Gnome shut down menu, I get several beeps from the PC speaker.  This appears to be a bug.  The best solution appears to be preventing the PC speaker module from loading at all.   Create a blacklist file in /etc/modprobe.d called blacklist-custom.conf:

sudo gedit /etc/modprobe.d/blacklist-custom.conf

Then, add the following line to blacklist-custom.conf, save the file, and exit:

blacklist pcspkr

This will cause the “pcspkr” module not to load on boot. You can unload the module without rebooting by running the following in a terminal window:

sudo modprobe -r pcspkr

Update Manager Pop-under

Update nags are one of the worst “features” of many current operating systems. On Windows XP, I am spammed by a torrent of nag balloons forcing me to install updates and restart when the installation is complete. In OS X, a similar update manager jumps out at me in the dock until I deal with it. Until 9.04, Ubuntu had it right. In previous versions of Ubuntu, a small notification balloon would appear once and go away when new updates were available to install. I could either click on it to install the updates, or ignore it if I was in the middle of something. Now, what happens is about ten minutes after turning on my computer, which is right about the time I really get to working on something, the whole system grinds to a halt with the hard drive going nuts. Then, the Update Manager window opens underneath all the windows I have running, blinking and nagging at me to install whatever it found.

To go back to the original notification window functionality, run the following in a terminal window:

gconftool -s --type bool /apps/update-notifier/auto_launch false

Force Shutdown

When I click the “Shut Down” button to turn off my computer, I want it to turn off.  No exceptions.  Instead, if Firefox takes its merry time to save its session or something is running in the background (mounted drive through nfs or samba that won’t unmount), I get a nice “x is not responding.  Logout anyway?” prompt.  I don’t care if something isn’t responding: kill everything and shut down.  To force shutdowns, edit your menu.lst:

sudo gedit /boot/grub/menu.lst

Scroll down and add “acpi=force noapic” to the kernel line of the default boot option:

title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid f9d46e73-4aae-4203-ad97-93df87196054
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=... ro quiet splash acpi=force noapic
initrd /boot/initrd.img-2.6.28-11-generic
quiet

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Ubuntu 9.04: Rough Upgrade

I recently upgraded from 8.10 to 9.04 on my desktop machine, and so far, it’s been a mess.  This was not the painless upgrade from 7.10 to 8.04 or from 8.04 to 8.10.  So far:

1. ATI/AMD is no longer providing drivers for my X1900XTX video card, so I’m using the free drivers.  The problem is that I can’t use two monitors without the mouse flickering like crazy and some strange window focusing problem where an unfocused window “jumps out” at me occasionally and then reverts to normal.  Disabling compiz and visual effects didn’t solve this.  Only when I disable the second monitor do the flickering and focusing issues go away.  I’m still messing with this one to try and find a solution, but there isn’t anyone else on the internet that’s complained about this.  I find it funny that people switch to Linux so they can run older hardware, but without driver support, that can’t happen.  The free drivers work well, but only if you’ve got one monitor.

2.  Something hosed my ability to play MP3s with Amarok. From this thread, I learned that running the following solved the problem:
sudo apt-get install phonon-backend-xine

3.  Flash stopped working in Firefox.  Any page with Flash would crash Firefox.  This can be solved by uninstalling and reinstalling Flash:
sudo aptitude remove flashplugin-nonfree flashplugin-installer
sudo apt-get install flashplugin-nonfree

4.  My Eclipse installation randomly crashes.  Also, the splash screen never goes away after starting up.  I’m in the process of reinstalling Eclipse to see if this does anything. Edit: reinstalling appears to have fixed the crashing and splash screen issues.

This hasn’t been an enjoyable experience so far — I was under the opinion that Linux is reaching maturity, especially Ubuntu, but this is definitely not the case.  The problems I’m experiencing seem to be a step backward from the last upgrade cycle.  As I just mentioned, the ability to run fast on older hardware is a huge enticement to switch to Linux, and if my three year old desktop can’t handle it, there’s a lot more work to be done.  I’m certainly not going to buy a new video card that’s worth much more than the rest of the computer.

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Linux and SSH Filesystem permissions

I find the SSH Filesystem to be a huge help when working with several computers at the same time.  I access my department’s storage as well as my network hard drive from anywhere.  Until today, sometimes I was unable to overwrite or delete files mounted by sshfs.  I realized that this was because by default, an sshfs mounted filesystem retains the userid and groupid of the remote owner.  So, if I have userid and groupid 1000 on my local filesystem but userid 1024 and groupid 2048 on the remote filesystem, I may have trouble writing stuff on the remote filesystem.  Linux sees that the userid and groupid are not my own, so I’m in trouble if the file I want to write to doesn’t allow others to write.

Looking here and here I found that you can mount a remote filesystem as a particular local user and/or group.  I modified my /etc/fstab accordingly so that all users of the “fuse” group can correctly mount my remote filesystem:

sshfs#username@remotehost:/remotedir /path/to/mountpoint fuse user,noauto 0 0

You can also specify a user or group id by replacing user with uid=xxxx,gid=xxxx.

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Ubiquitous Computing: The Nag Factor and Bad Design Decisions

Yesterday, the guy from HP came back and delivered a monitor that seems to be in working order. Finally, after ordering the monitor in January I get replacement number three in March that doesn’t have any problems. But everything wasn’t in working order for long. This morning on the bike, my iPod ran out of batteries and shut down after about five minutes. I have a feeling its Nickel-Cadmium battery is about finished. It was a rough hour and it got me thinking.

As I see it, the ultimate goal in the computer science community is to provide systems that improve our lives without us even being aware of it. Stuff should just happen in the background that we don’t even know about to provide drastic improvements in general areas like productivity, entertainment, and communication. All the background noise should be filtered out by these hidden systems so that we only see things that are important to us. For now, it seems, nothing is being filtered out and we are subjected to an increasing amount of information, almost all of which we really don’t care about. For example, this morning I searched Google for “mp3 players” (as in the physical devices) and only got hits for software programs. Problems like this shouldn’t happen, and I shouldn’t have to type in some weird query to specifically exclude certain results from my search. Some serious work has to be done to limit the scope of what we see to only the things that matter, and do it in such a way that isn’t annoying. Basically, operating systems and software should just work and not require any hacks to get solutions we want.

The first issue that comes to mind is with today’s operating systems. Gigabytes of patches and updates are released each month and harass the living daylights out of the end users to install them. This is one of the best examples of the Nag Factor. An operating system should not endlessly nag the user about installing updates and allowing administrative privileges. Ideally, the user shouldn’t even be aware that he or she is using a computer at all. Updates should be automatic and occur in the background without the user even knowing. Nothing is more annoying than to be deep into writing a paper or watching a movie when up comes a nag balloon demanding that some updates be installed and the machine rebooted.

Windows is far and away the worst when it comes to the nag factor. I’m almost completely off Windows at this point, with the exception that I use a partition on my laptop for my USB TV tuner, which unfortunately doesn’t have Linux drivers. It seems every time I start up the machine, about five nag balloons pop up telling me what wireless network I’ve connected to. About once a week another torrent of nag balloons pop up telling me to install software updates. When I finally install the updates, Windows forcefully reboots my machine. Nothing, I mean absolutely nothing, should ever forcefully reboot your machine. It’s a complete disruption of anything resembling the mantra of ubiquitous computing. A professor I had for a software engineering class once told me that it takes about eight minutes for someone to become completely engaged in a task. When some moron at Microsoft thinks it’s a good time to make your machine reboot, that’s about five minutes of lost productivity due to the reboot, and another eight to get back to where you were. Even Bill Gates complains about the forced reboots in Windows. Since I’ve never used Vista, I’ve heard another annoying “feature” is the User Account Control system, which ceaselessly has you type in your administrative password for stuff as simple as connecting to a wireless network.

Next up is OS X. Two years ago, I started the shift away from Windows with a Macbook. My Windows desktop began rusting from disuse almost immediately. Unfortunately, OS X suffers from the update nag almost as badly as Windows. Nearly every update is hundreds of megabytes and requires a reboot. iTunes updates even require reboots — what were they thinking? And when you install the stuff, it takes forever. Sometimes on an OS X update, my machine has rebooted two or three times over about ten minutes before the login screen comes up again. The updates first make their way to you through the extremely aggravating dock icon jumping out at you. While the dock is a good feature, the jumping icons are not. I can’t describe how irritating it is to be doing something and have a dock icon start leaping out into the center of my vision, ceaselessly pushing my buttons until I deal with it. There is probably a way to disable the icon jumping, but I’ve moved on from OS X, so it doesn’t matter at this point. UAC is also present in OS X but the designers did a decent job of only prompting you when changing administrative settings or installing software.

For the past year, I’ve almost exclusively used Ubuntu Linux for all of my computing. Finally, a group of developers has the right idea. It works almost seamlessly. An operating system should do its best to get out of the way and let the user do what he or she wants. Ubuntu is really close to doing this. The package manager is excellent — you can install anything under the sun (for free) and it updates automatically. You can’t even do this with the Mac by default, unless you install something like DarwinPorts, and even that is a real hassle to set up. The downside is that since every program you install is controlled by the package manager, there are frequent updates that require your authorization to install. Nearly every day something has a patch, but the package manager does its best to be minimally invasive. Nag balloons are infrequent, and a small icon appears in the task bar indicating that an update is available. Reboots are almost never required except for things that affect the kernel and nothing is ever forced on you. For now, I’m extremely satisfied with my Linux experience and will probably not switch back to Windows or Mac unless some serious revamping occurs.

The nag factor isn’t present in operating systems alone. The devices that are beginning to make ubiquitous computing a reality are providing irritations of their own. Whenever I miss a call, get a voicemail, or receive a text message, my cell phone beeps and hums to no end until I touch the screen acknowledging its nags. I’ve had two phones, and they both did this. Neither has the option to turn it off. I can check manually to see if anything came in while I was away from my phone and would prefer to do so instead of being constantly annoyed. I’ve also noticed that late model cars now beep at you if you start the engine and have your seatbelt off. Apparently, this is mandated by the federal government, but it’s just another irritating nag. Some cars will nag at you after the mileage counter gets beyond a certain amount since your last service.

It isn’t just the nagging that’s a problem, though. Some poor design decisions really limit the usability of computing systems and ubiquitous computing devices. The worst of this is proprietary software and hardware, with Apple really standing out as the worst culprit. The iPod that’s starting to die on me has a proprietary USB jack to plug it into my computer. What makes me mad is that it didn’t come with a wall plug to charge it — I’ve got to use the proprietary adapter to charge it via USB or for over $40 for a wall adapter. Since I don’t need to sync my iPod every day and would like to be able to travel with it without bringing my computer, a wall plug would be great. Thanks to the wall plug adapter scam, I don’t think I’ll be getting another iPod if I can help it. Apple’s computers also make use of proprietary headphone jacks and video outputs such as mini-DVI and mini-DisplayPort. I had to fork over $20 to get a mini-DVI to DVI adapter so I could use an external monitor with my Macbook. Universal hardware standards would make ubiquitous computing much more of a reality, with devices seamlessly integrating with each other and providing minimal headaches to the end user.

With respect to proprietary software, the iPod/iTunes combination also takes the cake. When I first got my iPod, I was using Windows, and installed iTunes on Windows to keep my music and iPod in order. After I got my Mac, I tried plugging the iPod into the Mac and using the Mac to keep everything synced. Did this work? Of course not. iTunes on the Mac whined that my iPod was formatted for Windows and that it couldn’t write anything to it unless it was reformatted. I don’t see why the geniuses at Apple could have written some drivers so that the iPod’s file system could be accessed from any operating system. It all seems to be about control. Downloading songs from iTunes only allows you to have those songs installed on three machines simultaneously and you can only load them onto an iPod in a proprietary format.

Cell phones are another example of this walled garden approach. You not only pay for the access to a cell network, but you have to get a proprietary operating system running on a proprietary phone to go along with it. You can’t just build your own cell phone out of spare parts, install your own operating system, and expect to connect to Verizon’s network even if you’ve paid for it. Google’s Android seems to be a step forward to breaking down this situation by permitting custom applications, but there’s a long way to go. Without all this proprietary junk to get in the way, you could see some seriously interesting applications, such as P2P file sharing on cell networks, refinement of video and text messaging, and the eventual integration of portable gaming, media, and communication into one device (the iPhone still sucks). For now, I’ve got to carry around my laptop for web browsing and programming, my cell phone for telephone calls, my iPod for music, and my PSP for gaming. Oh, and maybe a watch to tell time.

Finally, coming back to my dying iPod, battery technology needs significant improvements in order to further the goals of ubiquitous computing. Reducing I/O and computational complexity on the software side can only help but so much. The typical Ni-Cd battery, regardless of the device, lasts about two to three years and only runs for a few hours under full load. This is crap. Until batteries last for a week under full load and hold a full charge for nearly ten years, we’re just going to be throwing away perfectly good equipment. My iPod, which is perfectly fine with the exception of the battery, could last an indefinite amount of time. It seems really wasteful to toss cell phones and other mobile devices every few years just because a battery died. Reduced reliance on proprietary hardware and software could help this problem as well, for parts could be easily interchanged or upgraded if new features become available.

If the tech industry would focus on reducing the nag factor and increasing the openness of design standards, the shift to ubiquitous computing could be faster and more seamless. Until then, we’ve got to deal with the endless OS nag balloons, proprietary devices, and terrible battery life.

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TinyOS and NesC syntax highlighting

Since I’ve been doing some more work with TinyOS, here is a gedit .lang file that provides nesC syntax highlighting.  I got the file from the author of this post on the TinyOS mailing list and it’s been pretty useful.  To install it in Ubuntu, place the file in /usr/share/gtksourceview-2.0/language-specs/.  Unfortunately, you’ve got to be root to do this and I don’t know of another way to add .lang files if you aren’t.  This is a problem for the departmental machines where I don’t have root access, so I can’t use custom gedit syntax highlighting.

There is a more heavyweight solution, if you like Eclipse.  Since I’ve been using Subclipse with Eclipse on several machines to keep all my code in sync, I’ve found Eclipse to be pretty useful.  A TinyOS 2.x Eclipse plugin is available on this site that provides syntax highlighting and it appears as though it will compile and install source code as well (though I haven’t tried that part).

2/21/2009: Since I’m on the topic of Eclipse, I’ve noticed that the Ubuntu repository Eclipse version is 3.2, but 3.4 is available from the Eclipse website.  Following this guide, it seems that you can override the /usr/eclipse directory with the new version if you want to upgrade.  Plugins will have to be reinstalled, though.

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I just used a floppy…

I almost forgot these things existed, but I’ve had a nagging BIOS issue with my old desktop.  When I hit the power button, sometimes the system would power on, then turn off for a few seconds, and then turn on again.  More importantly, sometimes the CPU fan wouldn’t come on leading to it overheating and shutting down.  The BIOS is so old that I had to flash it with a floppy, and I had to go home and do some digging around until I found one.

I even had to screw around in Ubuntu to get the drive mounted.  The floppy has been seriously neglected, but what do you do when you’ve got an old BIOS that won’t flash from USB?

Fortunately, the flash worked, but I hope the CPU fan issue is resolved.  I really hate looking down to see if the fan has started up when I turn on the computer.  I used to just leave it on indefinitely so I wouldn’t have to worry, but it gets too hot in here.

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Upgrade Headaches…

Yesterday I installed Intrepid Ibex 8.10 on my aging (now ex-gaming) desktop machine in an attempt to breathe new life into it.  I wound up biting the bullet and ordering a new monitor and Xbox 360 for games, so now I’ve got two monitors.  Neither the Lenovo nor the Mac laptop I’ve got support two external monitors, so I thought I would give the desktop a try.  Though the installation went fairly well, two really annoying things weren’t working correctly, and a third I’m still dealing with.

First, the mouse.  I have a Razer Copperhead USB mouse that’s been great for years and when I first booted after the installation, it didn’t work.  The lights came on, but I couldn’t move it.  If I unplugged it and plugged it back in, it worked fine.  This would happen every time I rebooted the machine: no movement, unplug, plug back in.  After some digging around, I found the problem was that the mouse firmware had to be upgraded.  Of course, Razer only has the update software for Windows, so after some screwing around with that, I rebooted with the Linux machine and it worked fine without having to unplug the mouse.

Second, the dual head support for my ATI video card was lacking after the initial install, just mirroring my primary monitor onto the other.  I was able to fix this by installing the proprietary ATI drivers and using the ATI Catalyst Control Center to “merge” both screens into one.  Of course, this didn’t entirely fix the problem since every time I rebooted, the mirroring came back.  I finally found out that after I set the displays correctly in the ATI Control Center that I had to open up the Ubuntu Display Settings panel and hit “Apply”.

Both of these problems were really annoying, kept me searching and frustrated for hours, and have rather quirky solutions.  While I really like Linux, stuff like this doesn’t seem to happen as much with Mac or Windows.  However, community support is pretty good so after some extensive research I was finally able to find others with my problems that had found solutions.

Now everything seems to be working well, except that the stand for my monitor arrived bent.  It’s only a couple millimeters out of shape and the box it came in seemed undamaged, so I’m not sure what happened.  It’s bad enough that when I type sometimes the monitor wobbles.  It’s something I could probably live with, but the wobbling is annoying and I paid for a new product (not refurbished) so I don’t feel like letting it go.  So, I spent two hours with phone tree hell HP tech support about returning it and then filed an RMA request from the online vendor.  It would be best if I could just replace the stand since the monitor is fine — there’s only one stuck pixel.  Shipping the whole thing back is going to be expensive if the RMA is approved.  I guess the question is if the bent stand is worth another $30.

I still haven’t gotten to the Xbox yet because of all this (and some other annoying legwork type stuff for a research proposal that is due this week).  It also turns out that I got the wrong RCA to mini-stereo adapter and will have to try to exchange that so I can plug in the Xbox sound to the line in on my PC.  The whole thing is kind of funny because part of the reason I went with an Xbox was to avoid dealing with putting together a new system and troubleshooting the whole thing when a bunch of stuff doesn’t work.  Instead, I got more than I bargained for.

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Caveat Emptor, Early Adopters

I upgraded to Ubuntu Intrepid Ibex last night and now I can’t connect to any WPA2 Enterprise networks.  Unencrypted works fine, but the school’s WPA2 APs seem to be more pervasive.

This issue seems to be happening to a lot of people so I’m hoping someone is working on it.  That’s the best thing about open source — if something bothers you about the software you can change it yourself.  Unfortunately this problem isn’t in my area of expertise and I have plenty of programming to do for a project of my own.

I should have waited at least a month after the release to upgrade instead of jumping right in.  New builds always have some serious problems that have to be worked out.  I hear on message boards that new vehicle models and redesigns of old ones are prone to all kinds of quirks during the first model year.  It’s best to wait until the second year to buy one so all the issues can be worked out.  The same seems to go with electronics — the first iPhone had no GPS and a terrible 2G data connection, while the second version fixed these issues.  And, of course, this quirkiness happens with software.  Windows XP was a mess when it first came out and Vista was worse when it came to drivers and stability.  XP is stable today (arguably), but Vista still has its problems.

Early adopters pay a high premium to get a product with limited functionality along with some unwanted side effects.  As I sometimes forget, it’s best to wait until the problems have been worked out and the price comes down (if it’s not free software).  Usually new and improved features get added in as the bugs get worked out.

So now I’m not even sure if I can drag my laptop around campus until this issue gets worked out.  Serves me right for just following the appeal of something new, but not necessarily better.

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