Just driver issues. I've tried the Omega drivers, just don't care much for any of them. The 9600 is just slow on some games, that is why it is getting replaced.
Right now I am looking at the MSI 6600GT with VIVO for $193, and the Leadtek 6800 for $189. I kinda like the VIVO, so that may be the winning factor, but the 6800 supposedly has unlockable pipes, giving it potentially much more performance.