I seem to be having the same problem. I reported this as: bug #138933: [Gusty] Broken Nvidia driver after upgrade to Gusty (7.10)
What might be the problem is a hidden file in /lib/linux-restricted-modules/ try running: sudo rm /lib/linux-restricted-modules/.nvidia* Also see these bug reports for more information: Bug #106217: Hidden file does not get removed when switching from nvidia-glx-new/nvidia-glx-legacy to nvidia-glx causing X not to start due to mismatch of versions Bug #130799: Gutsy nvidia-glx no gpu or API mismatch -- [nvidia-glx-legacy] nvidia module won't load with 2.6.22-10 kernel (gutsy) https://bugs.launchpad.net/bugs/137432 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs