If you do a update-manager -d under Ubuntu 9.10 and happen to be behind a firewall, you might notice that it appears to freeze as soon as you click on the Upgrade button. This is caused by a known bug in Ubuntu where the start of the upgrade process doesn't take your proxy settings into account.
It's been fixed in 10.04, but that doesn't help you if you're using 9.10 or 9.04.
I've been using it for a while on my work Linux computer and my home Linux laptop. The work machine's been running basically flawlessly. The laptop had some issues with the wireless adapter, but thankfully that has been resolved.
On the laptop side, 3D graphics effects are now supported. I now have Compiz running on both machines, which is kind of cool. (And since I've mucked with the window closing animations, closing windows is much more exciting than it used to be. Burn and Beam Up are cool. Uh, anyway.)
KDE4 has recently released a Windows version of KDE which allows many popular KDE applications like Konqueror under Windows.
Well, sort of.
The installation process is still a bit sketchy. My first attempt to use the graphical installer failed, because I was behind a firewall and the attempt to use Firefox's settings failed. (It does need to be noted that I use a PAC script for settings, so if using Firefox settings worked for someone else, that could be why.)
I recently got a new laptop which I've installed Ubuntu to. It's working wonderfully, better than I was afraid it would. Unfortunately it won't run Compiz on the graphics chipset that was included (some Intel integrated thing) but that's hardly a big deal.
In any case, I figured I'd use the Ubuntu Firefox Addon installer to install the mouse gesture addon.
It, uh, didn't work.
It did install Thunderbird though.
Unfortunately it didn't actually install the mouse gestures addon into either Firefox or Thunderbird.
For those of you who aren't programmers or nerd, "\a" is the string commonly used to represent the "alarm character" is C-style programming languages. It makes the computer beep.
Problem: Almost all computers don't use the sound card to beep, they use a special dedicated speaker. (Why? Diagnostic reasons, many computers will use special beep sequences to indicate an error that prevents them from displaying graphics. Such errors would also exclude the sound card.)
So why is this a problem? Well, because the beep is coming from a special speaker dedicated to making annoying beeps, it completely and totally ignores your volume settings.