When I use Sli on my system the sound goes crackly and eventually stops playing only under larger video processing program such as a game. When I disable sli its fine under any connection. I have used inboard sound then 2 different sound cards and the problem persists. I tried resetting the graphics cards, sound cards and the sli bridge. I've updated the software for each device but the problem still persists. Right now I just don't use sli anymore and I have a spare 8800 ultra sitting around. Any ideas?