crossfire problem with apace siege

[electricsun]

Hi i have two ATI 3870 hd x2 in crossfire mode and i tried playing single player. It wouldn't work. So i disabled crossfire and the single player game worked!
Is there a fix i can use or a way so that space siege works with crossfire?
Any help will be Great
Electricsun

[electricsun]

I fixed it . For those who have the problem and can't get single player and cant get it to work with ATI CROSSFIRE to work go to advanced options 3d then anti-aliasing then check temporal anti-aliasing and slide it to the x 8 or 16x to uncheck temporal anti-aliasing

[electricsun]

mistake just use 8x and check temporal anti-aliasing and any filter