I have it on my Desktop HP Pavilion m7330n as well xpress 200 card. I thought it was x200 card issue bout I guess not. For now I swithed back to ATI drivers and they work perfectly (of course no xgl and compiz and 3d accel). I will wait till this issue is resolved as login out is more important than wobbling windows although it was mad cool when I had it running.
-G -- Lockup problems with both the free xorg ATI driver and the proprietary fglrx driver, using various ATI cards https://launchpad.net/bugs/30447 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs