ATI dirver problem
Newbie here running 3 alpha. I have a Radeon X800 GTO video card and wanted to get 2 monitors up and running. I went to the AMD site and downloaded and installed the 9.3 linux drivers. Everything seemed to install OK but I would get an error when I tried to run the ATI control center saying that the driver wasn't installed. I rebooted thinking that might help. On reboot, after entering my username and password I got I blank white screen with a mouse pointer. Nothing else. How do I fix the install or revert to whatever the original drivers were?

drivers
Finally got things working.
Finally got dual monitors working. After a reinstall to get things working again I downloaded the latest drivers from the ATI page then followed their instructions to install them. After reboot, a white screen. I then made the following additions to my xorg.conf file:
Under the Modules section I added:
Load "bitmap"
Load "extmod"
Load "freetype"
Load "int10"
Load "vbe"
Load "glx"
Load "dbe"
Load "dri"
Load "v4l"
Then at the end of the file I added:
Section "Extensions"
Option "Composite" "Disable"
EndSection
I believe this second change made the difference but if you are having problems I would suggest both changes.
Edit - I can't get it to format correctly. Under the modules section each Load command should be on a separate line. ( Edit - Fixed ;-) Quentin)
Ok I finally had to
nVidia user here
Ok I booted into repair mode