Comment 2 for bug 638725

Clint, and anyone else who has this problem, have you see Vish's comment on bug #608361?
  https://bugs.edge.launchpad.net/ubuntu/+source/unity/+bug/608361/comments/8

He recommends doing this from the command line:
  $ ubuntu-bug xserver-xorg-video-<driver>

where <driver> would correspond to the graphics card your system has.

Once you've done that, you need to "also affects" Unity. You can then mark this bug as a duplicate of that one (so that folks are pointed in the right direction when they come here).

Thanks!