I usually play Sins of a Solar Empire (Entrenchment). No problems running the game with my 4850s in CF. GPU-Z shows both cards are running under 99% load and CF icon is showing in the right corner of the screen. However, when I play Crysis Warhead, I don't get the CF icon in the right corner of the screen and GPU-Z shows one card under 99% load while the other 4850 is under 40-50% load. I know this isn't much information but if anyone has run into this problem, any advice or ideas would be much appreciated. PS: I'm currently running CCC 9.8. When I was running 9.6, no problems and I'm resisting the upgrade to 9.10, 11, and/or 12 because each presumed driver improvement has made my machine worse. I know that I could go back to 9.6 but I'm concerned that this could cause problems too. Maybe I'm being paranoid.