Same problem. Very frustrating. Fresh install of 11.04 64-bit. Card is GeForce GTX 550Ti. Activated the recommended driver on first boot using Additional Drivers tool, set the default UI to Classic Ubuntu. No sign of compiz anywhere and Additional Drivers showing "The driver is activated but not currently in use."
lspci|grep nVidia: 02:00.0 VGA compatible controller: nVidia Corporation Device 1244 (rev a1) 02:00.1 Audio device: nVidia Corporation Device 0bee (rev a1) uname -a: Linux chambeadPC 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772207 Title: version 173.14.30 is buggy for NVidia GeForce FX series -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs