Same box, same disc, but different results!
Last night I successfully installed Ubuntu Feisty Fawn on my Athlon 64 X2 4200+ system. The grub bootloader did not function, so I went in and found the kernel settings to load it and added those to the LILO entry that I loaded from my Slackware "home" distro. Ubuntu booted beautifully and has been functioning pretty; much as expected thus far. The desktop effects in gnome with compiz are quite nice and add a bit of a sparkle to the desktop.
As far as hardware support, multimedia looks great and networking is up to par. I was prompted to install 72 odd updates, some of which failed the first time around, but it remembered that and left them in queue after the first batch was completed. With Desktop Effects enabled, the workspace switcher seemed to lag a bit and not show all of the panels, but that's no big deal. Adding packages certainly is a "set it and forget it" process, simply select the package and add it. Dependencies are resolved automatically and any other additional packages are installed as well.
I apologize for any Ubuntu fans out there who may have been offended by my previous posts regarding this distribution; I have now had some success and learned a bunch, and once again witness the ingenuity and productivity of the open source community.
Penguins 'R' Us!
Registered Linux User #370740 (http://counter.li.org)