Originally Posted by DiceAir
Ok I may have found my issue. I think my cards can't handle this resolution so well. When i disable my one of my GTX570s My flickering and screen shake stops. I only tested Battlefield 3 so far. Maybe it's time for upgrade
I have GT570s in SLI. I am not only running fine but i have been able to get probably further in overclocking this monitor than most. If disabling SLI fixes it then i would look at this from two stand points.
First software - Check over the drivers and possibly do a full and complete re-install of the drivers. There is several good nvidia driver re-install methods that completely wipe any issues that could be present.
Second hardware - One thing you might try is moving the secondary card to the top and then retry SLI. My top and bottom cards have distinctly different performance in terms of overclocking. It is possible you have a card going bad and when in SLI you get dragged down. You may also have a bad SLI bridge.
Just some thoughts before you drop the 570s. But if you are wanting to upgrade the 700 series are a bit more setup for overclocking.