Eh thats on my old computer, i only blue screen when i run 3 or more wows. And thats on XP. So right now i am thinking going with ddr3 1333 4gb and windows vista home premium 32 - bit, because sometimes i go back and play old games like starcraft and they say that doesnt like to work on a 64 - bit system. Anyone have a reason for me to do somthing else? Your help is most appreciated