I've been messing with this for 2 days now and can't seem to find a solution. As far as I'm concerned there's a way to enable SLi for Dirt 2. Today I downloaded the latest driver 196.21 that has SLi support for Dirt 2 and it still doesn't work. My second card sits at idle temps and although my fps went up by about 5, that's only due to a better driver. I can't seem to figure out how to enable SLi, even though avg fps now is 59 running only 1 card, I can use some extra for more AA and such. Anyone?