I don't personally have the problem with either of my cards, however I am 90% certain this is a voltage issue. I think some of the cards just can't properly run at 1.125v To anyone having the problem if you would simply load up MSI Afterburner, go into the program's folder, find MSIafterburner.cfg and change "EnableUnofficialOverclocking" to 1. After that, set the clock speed of the card to 850//1200 and change the voltage of the core to 1.2v. See if that helps. Also, this error can be caused by an unstable CPU, so MAKE SURE before you bitch that your CPU is 100% stable using an appropriate testing program (3dmark doesn't count).