Better yet, please try to test with the development version of Ubuntu, Herd-4: http://cdimage.ubuntu.com/releases/feisty/herd-4/ It has some known problems fixed.
-- 3D screen saver crashes system https://launchpad.net/bugs/47447 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
