I have some minor annoyances with Ubuntu Hardy Heron:

Installing the latest version of btnx, deleting all the buttons in it, and reconfiguring them has not resolved an issue I was having where Firefox 3 beta overrides btnx's configuration. FF3's override stays after FF3's closed, but restarting btnx resets the mouse buttons back to what I want them to be. If I don't use FF3 beta, the mouse buttons stay fine. One possible culprit is the FireGestures add-on for FF3. My favorite All-In-One Gestures isn't updated for FF3 yet, so I had to settle for FireGestures. I'm still looking into this.

Print driver. I was trying to see if XSane, a scanning engine for Linux, was usable, and decided to install a package of HP drivers. Lo and behold, my HP Laserjet 1200 printer was wroth at such action, and perforce decideth to lock up ye systemme when accessed. I've fixed this driver-related screwup and still hate XSane's insanity. So Windows is still where I go to scan images. Grr. I know, that's an XSane issue. But the printer driver shouldn't be updated unless I tell the damn thing to be updated, mmkay?

I guess this next one isn't really a Hardy issue, it's an XMMS issue. XMMS, the Linux Winamp, is not available under Hardy Heron. Imagine my delight when I found out that XMMS was replaced with XMMS2. 2 must be better than the first iteration, right? RIGHT!? Well, yes and no. Turns out that XMMS2 is a daemon that does a great job of playing music, but it expects user interaction through the command line rather than a GUI. This blows my mind a little. I mean, I understand that they're pulling away from coding graphics and just want to focus on the playback, but come on, why not have a superbasic GUI? Instead there are plenty of potential XMMS2 front ends that are in development, none of which has the ease of use of XMMS. *sigh* On the other hand, exaile, the Gnome version of amaroK, a decent iPod-aware program, is looking pretty stable, and it seems like the quiet playback issue has been resolved. So I'm using that now for music.

I have a cron job that runs hourly to mirror my current home directory structure to my file server via rsync. After I booted into Hardy, I tried to run the cron job manually to get a snapshot of any config files that had changed. Interestingly enough, hard drive access on my file server went berserk. Turns out that a directory called .gvfs in my home directory was pretty much a mirror of the entire hard drive. Yep, the cron job was trying to sync up the Gnome Virtual File System. The job crashed out with an error, fortunately, so I excluded that directory and all's good now. So that was fun. Running df at the command prompt, there's an entry called "gvfs-fuse-daemon" that's the same size as my hard drive. Again, the Gnome Virtual File System is the culprit. Having looked at a general overview of what the GVFS project is doing, I'm all for it, but 'tis a might bit funky at the moment.

Finally, and this may be an NVidia driver issue, there are some occasional visual glitches once in a while that resolve themselves, but a flash of discombobulated video isn't something I like in my desktop experience. Anyone else seeing this with a high end NVidia card?

Good things about Hardy far outweigh the negatives. It's much more responsive overall, and seems to run my CPU cooler for some reason under the same load. Boot time is very snappy. Google Notebook and del.icio.us seem to have embraced Firefox 3 beta with mostly-functional updates, which, aside from my mouse button woes, were my big beefs with Firefox 3 beta. It's good. Just more troublesome than my Feisty Fawn to Gutsy Gibbon upgrade.