I had an smimilar problem! Just changed driver "nv" to driver "nvidia" and everything was OK (Live-CD->ctrl+alt+f1, edit xorg.conf, restart X)
-- X (at gdm startup) is garbled (except for mouse pointer) https://launchpad.net/bugs/21168 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
