I just recently purcahsed the new Sony DRU-810 DVD burner, as my old CD burner died. Installed it and started Win XP, auto found it and installed drivers, then put in the Software CD for nero. About halfway through, my PC powered off. Didn't restart, no blue screen, just power off. I removed all PCI cards except my graphics card. Same thing. Switched the burner to Slave and used the Slave cable. Same thing. Defragged. Scandisk. Same thing. Tried to play starcraft. Same thing. Haven't even tried burning or using a DVD movie, just reading CDs, and the computer shuts down. Starting to think the motherboard is shutting down due to overheating? But before when playing games like half-life, my computer never shuts itself down from overheating. Any ideas? Please?