when i was playing battlefield 3 on some maps i get a weird black and white from specific locations i was wondering if maybe one of my graphics cards was dying my system is pretty old just trying to hang on for the newest card to come out so what should i do it plays fine on my laptop with the 8800gtx cant figure out why it makes them took cards part cleaned them and applyed new thermal paste is my case not ventlating good cause it acts like the system is getting hot the cards are not overclocked there xfx 9800gtx+ in sli could it be a bottleneck with the e6600