ATI has released new drivers for their videocards. This update will bring you upto version 6.6 and improves performance for games like F.E.A.R. and Far Cry. It also fixes issues Quake 4 and a couple of other games. Get the latest ATi drivers from the official ATI website. (Action Trip)
There's a new Call of Duty 2 patch out that fixes some issues with PunkBuster. I'd run a server but what time I am gaming, I'm trying to finish Need for Speed: Most Wanted or FarCry with the occasional Quake 4 demo every now and then.