I also have this same problem using Feisty herd 5, fully updated using kernel 2.6.20-12-generic, using the newest version of nvidia-glx.
-- gdm does not restart after Ctrl+Alt+Backspace https://launchpad.net/bugs/34859 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs