Downloaded them and installed and all up and running. Ive noticed a big bump in performance in GTA IV
These drivers seem to be working fine for me, havent tried any other game though.
Drivers & Software
I tried installing them and it just sent me to the Windows 7 Basic theme with a fuzzy screen. Back to 8.3
+1 to what loathe said....
ALWAYS uninstall all of your ATi CCC and Display drivers before you install new ones.