I've got a brand new GA-965P-DQ6 with an E6600 and 2GB of Corsair 5-5-5-15 XMS2 PC26400 memory, nVidia 6600GT running Vista RTM. If I am using the computer, all seems fine. However, if I let it sit idle for a while, it turns itself off (haven't seen it happen, so I don't know if it's a blue...