I have the same problem on a regular Ubuntu 5.10. But this solution doesn't work for me, i've tried it in any possible ways, but i still end up reverting to the 7667. After uninstalling with 8178 i find no listing of files in /var/log/nvidia-installer.log, nor does uninstalling using 7667 work. I'm using the precompiled 2.6.12-10 kernel from the repositories, i've tryed reinstalling the kernel, source, headers, i even searched for files containing "nvidia" and deleted any symlinks but the same error persists. I also deleted any files with the name 'nvidia' in /lib/linux-restricted-modules and /lib/modules, still the same.
lord_hammer what was the symlink you deleted?