Arma running worse in crossfire

[breacherman 10]

I havent run arma 2 in awhile, I believe the last time I ran it was before 9.10 drivers were released. I just updated to 9.12. But with both drivers,(9.10/9,12)fps drops while in crossfire.

For ex. before, I used to get around 40 to 60 fps in the menu in crossfire. Crossfire turned off, fps would drop about 15fps. Now, with both crossfire, I get about a 5 to 10 fps drop from when using just a single gpu.

I read through the forums and have seen no other posts about this issue.

PSU: AMD Phenom 2 black edition 3.2ghz quad

GPU: 2x radeon HD4890's crossfired @ x16 pci-e x2

RAM: 6gb DDR3 corsair xm3 1600mghz

MB: MSI 790FX-GD70

PSU: Corsair 750w

OS: Win7 64bit

Case: Coolermaster Haf 932

[Kristian 47]

try using "-win32" to the starting parameters, I heard it has helped.