Anytime I restart by clicking restart on the start menu or when a program wants to restart, vista will reboot and and just loop in a reboot mode constantly until I press the power button on my computer and turn in off that way and then when I turn it back on it's fine and boots into windows. Usually I just tell the comp to shutdown and then press the power buttton to turn it back on but this gets tiresome some times. Does anyone have any suggestions?