Well after removing and replacing the most current ATI drivers, removing Norton and installing MS Security Essentials, my system is still randomly shutting down. Very frustrating. I do like the MS Security Essentials.
I forgot to mention above that I replaced a power supply on this Dell Studio XPS which had a 280watt power supply with a 430watt Thermatake. The local store said the 12v "rail" was bad on the Dell power supply.
So I will post the latest Performance report shortly.