Recently bought this monitor and after playing for roughly an hour the screen begins to flicker horizontal lines and then the monitor produces a double image. I have tried this monitor on another good, working computer and it does the same thing. I powered it down for a bit and once I powered back on it was good for like 10 minutes and started again. I'm assuming its overheating or something..hoping I didn't just buy a dud! Any help or experience would be appreciated!! I have not overclocked this monitor and I am running 2 MSI GTX 760 SLI.