mykill

Hi kklownboy, I tried what you suggest (rename to crysis.exe and use -winxp), and it works, but it's not really clean... I modify arma2.cfg to "HDRPrecision=32", but i didn't see a real difference ? (before, value was set to "8") Finally I disabled Crossfire in the ATi Control center, and then, I loose the benefit of 4 GPU, but as the X2 cards have an internal bridge, Arma 2 is able to use 2 GPU. So, it is possible to play at 1920x1080 with one 4870x2 (catalyst 9.10), Phenom X4 955, 8GB RAM, Vista X64 SP2. (no overclock) Just waiting for a fix concerning crossfire to play on less powerfull computers.

Hi, Just check the option in ATi tray (right click) : select your card -> "CrossfireX Settings" -> "Show CrossfireX status icon" You will see that if you rename Arma2.exe, then CrossfireX will be disabled in game (but acivated in ATi Control Center). So, you play as if you disable "crossfire" option, and you don't have the problem. I have the same lighting issues as leefost on 3 computers when Crossfire is activated : - 2 x 3870 / Athlon X2 6400+ / 4Gb RAM / Vista X64 SP2 - 2 x 3870x2 / Phenom X4 9950 / 8Gb RAM / Windows 7 X64 RC - 2 x 4870x2 / Phenim X4 955 / 8Gb RAM / Vista X64 SP2 Arma2 is patched with 1.04 ATi Catalyst 9.9 or 9.10