Re: 7400 GO blank screen!
Alright, I used a few workarounds to fix the Ubuntu bug. First was that I believe the newest version of the restricted manager filles /lib/linux-restricted-modules/nvidia_new was moved to /lib/llinux-restricted-modules/2.6.22-7-generic/nvidia_new, so I deleted that folder. Second was that I accidently added DISABLED_MODULES="nv nvidia_new" to /etc/default/linux-restricted-modules when I had linux-restricted-modules-common so I added that line to /etc/default/linux-restricted-modules-common. The third was that I removed all lines referencing Nvidia in /etc/modprobe.d/lrm-video. After doing this I reinstalled the nvidia drivers, and did startx, resulting in the same black screen. However this time I generated a an nvidia-bug-report.log, and it appeared to be running the correct version of the drivers this time, not Ubuntu's version. I'm thinking this means the problem is no longer due to Ubuntu's driver manager.
Could you take a look at the new logs?