Thanks for the replies guys. I have evga precision to tweak my fan on the 260, it also tells me my vid temps. Never gets above 72.. I have a massive oversized Cooler master fan on my CPU. Plus 2 120mm on top, and an 80 in the back, and an 80mm blowing on the HD cage. I don't think its a heat related issue, mainly because i can play Modern Warfare 2 and Black ops for hours, and those games are more demanding. I ran Intel Burn test on my PC and it passed everything. I'm a PC repair tech by trade, and it has me stumped. I was thinking maybe a PunkBuster issue, since VAC games are unaffected, also because i could play the SP of these games without problems, PB doesnt load for SP unless you specify it to somehow.. Im stumped lol