If I alt-tab out of the game and return to it that causes water to flicker pretty severely. I'm just wondering if anyone else has experienced this? I'm running gtx 680 SLI with no overclock. I also noticed that there is some "permanent" in game flickering that I can't get rid of. E.g. In single player when you first see the damn at the beginning of the root of all evil mission. A piece of the dam flickers and the building behind it flickers badly. Has anyone else seen this?

I have water flickering too and strange glitch at the right side in MP and SP !!!