I'll just say that my graphics card is a Radeon 6770.
I don't feel like posting the rest :u
Must be a small resolution.
Although they are great cards for the price.
-snip-
Forgot about dxdiag. Goddamn I'm handicapped.
Do a full uninstall of your current drivers (use the uninstaller, then also run Driver Sweeper).
Reboot.
Clear your assembly using the instructions here:
Then, clear out the Windows GAC (Global Assembly Cache). In Windows 7, you can browse directly to "C:\Windows\assembly". Sort by "Public Key Token", then delete everything with the Token "90ba9c70f846762e" (ATI's key). You'll obviously need Administrator privileges. No reboot needed either. Reinstall the Vision engine and your drivers, and you're good to go.
Then download and install the whole catalyst package here (top one, version 11.10):
http://sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx