Why wont sli mode work on 560ti in Battlefield 3

I've been reading a lot of forums lately and still have not been able to get two EVGA Gforce 560 TI's to work in Battlefield 3 in SLI mode. Either one works by itself fine. I keep getting a flicker in full screen mode with SLI turned on.

Everything was working great until the latest Battlefield 3 update this last week. Now it will not work again.

Any help would be appreciated.

Rampage Formula MB
Q9650 Quad Core
8 GB Ram
Twin EVGA 560ti video Cards
Fatal1ty Soundblaster Sound
SATA drives