Hello, I am running a rig with windows 7 64 bit, a phenom II x4 3.4 ghz processor, 4g ram, and two radeon hd 5770's. Ever since i installed windows 7 a few days ago my fps have droped and textures flash and blink when crossfire is enabled, Could their be a reason for this? I have DL all of the crossfire profiles and have told CCC to use pre made crossfire profiles but still no dice. I feel like i should be able to run this game on max settings but i may be wrong. Plus it worked on windows xp 32 bit in crossfire... Help please.