Hello all. Before i go on, let me give you the specs of my machine: P4EE 3.73/1066 Bus 512MB DDR2 533 RAM 160GB Serial ATA HD GeForce 6800 Ultra Video card Abit Intel 925XE PCI Express Mobo Pioneer DVDRW+/- drive Antec Metallic Grey Server Chassis Thermaltake 480W P.S. OK. My PC keeps rebooting during games. That and everytime i shut down my system and turn it back on my Hard Drive wont get recognized.I always have to hit the power button to turn it off and as soon as the light goes off hurry up and hit it again to turn it on in order for my hard drive to get recognized. Could it be the Power Supply or the Motherboard? Any help would be appreciated with these two problems. Thanx in advance.