Comment 9 for bug 141533

I noticed this patch which sounds like it might have caused this issue: https://bugs.freedesktop.org/show_bug.cgi?id=12175

Here is a deb with this patch reverted. Please install and test to see if it makes the issue go away:

http://people.ubuntu.com/~bryce/Testing/xserver-xorg-video-ati_6.7.193-1ubuntu2_i386.deb