Comment 21 for bug 284687

Jacob: I can't guarantee this will work, but here's what I think does the trick: open up synaptic (System>Administration>Synaptic Package Manager), in the quicksearch bar type 'ati', and for each of the following, if there is a green box beside the entry, right click and mark for complete removal:
xserver-xorg-video-ati
xserver-xorg-video-radeon
fglrx-kernel-source
xorg-driver-fglrx
fglrx-amdcccle
fglrx-modaliases
xserver-xorg-video-radeonhd
(anything else that has the word fglrx, ati, radeon, or radeonhd in it)

open the terminal and type sudo apt-get install xorg-driver-fglrx fglrx-amdcccle

make sure your xorg.conf (/etc/X11/xorg.conf) looks something like this:

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
 DefaultDepth 24
EndSection

Section "Module"
 Load "glx"
EndSection

Section "Device"
 Identifier "Configured Video Device"
 Driver "fglrx"
EndSection

and reboot your computer.

Bryce:
Sorry I didn't reply before. I wasn't able to reproduce the bug after I fixed it, and didn't get around to responding. Anyway I've since reinstalled from CD, and haven't run into it.