I run 3 way SLI, and nothing I have done fixes the flicker.
I know it's not heat issues, as the cards are on a watercooling loop and never go above 58c fully loaded.
I'll monitor my GPU usage while playing, haven't really looked into what kind of % I'm getting. I can say the scaling seems on, as I do get extremely high fps, were it not for the flickering.
I'll post back with some results.
yeah SLI is working perfectly it seems, the GPU's are sharing the load fine and the FPS is high and steady with vsync on, but the flicker is worse now since 1.2.
Also the motion-blur is still severely broken with SLI, showing trailing ghost-images
(SLI on)
instead of smooth blur.
(SLI off)