[naz]

I was having the same issues as you With my ATi 5970 Krupi...Have always had to run in Pseudo mode for acceptable playability (and in Full screen mode I got that awful degradation of performance from one mission to the next as you mentioned). Like some others, this beta patch gave me worse performance (and I tried full screen again for the xfire with the dual GPUs which was even worse).

I have finally given up on the whole Dual GPU/xfire and today bought a 3 gig nvidia 580.

Despite the poorer performance on my 5970, the beta patch (which I think is fantastic overall) confirmed my opinion that the game is heading in the right direction, so I don't mind shelling out the cash for a new card. From what I read (and from my own experience with other games) CoD is not the only game that the 5970 fails to be fully utilized with. I will be sticking with single GPU cards for the foreseeable future I think, much less hassle.

Anyway, the 580 performs outstandingly....almost everything on max (at 1920x1200) with smooth gameplay...even Track IR is way smoother now. I was just flying a rooftop level over London with the a lowest FPS of about 35 or so. Unreal. I'm still smiling.

Clouds still chew up the frames but I am quite happy to have changed video cards now, all things considered.