Hey guys

I play a lot of games through steam, and using a HD5870 along with the Catalyst Control Centre (CCC) I would naturally bump up a lot of settings in there. In quite a few games this would render them unplayable to the point of major FPS drop, game crashing, flickering etc. Do what I did and turn every single setting in your CCC to Application determined. Let the game choose your settings instead of your control centre. The only thing I use my CCC for is overclocking the GPU, and I have absolutely no problems since doing that.

Let me know if this helps. It fixed games for me such as Dirt 2 crashing constantly, NFS Hot Pursuit not even starting up, and GTA Major FPS drop.

I can confirm that the new AMD catalyst version 11.3 for ATI graphic cards is doing the job!! Nice frame rates, fully functional Crossfire!!. Check my video!

My setup, I get Nice Frame rates 60-70 fps settings:
2 x 6870 Crossfire
Q9550 Core2Quad OC @ 3612 MHz
8 Gb GEiL Ram, CL 7, OC @ 1480 MHz
resolution: 1920x1200
Crysis settings Extreme

That's awesome that your CCC is working nicely, although where you have got the 11.3 version from I don't know. I've just updated mine right now to version 3.00.8 something.