Hey I've had an ongoing problem with my PC in that every so often it will restart itself for no reason. On Friday it did it again but this time it eiher keeps rebooting itself continuosly before even getting through the bios stages or if it does get through it and trys to start windows all I get is a black screen with a flashing white underscore in the top left of the screen. I have removed 1 memory chip which seemed to help in that I now get an image on the screen. I have a Gigabyte 8S661FXM motheroard, P4 3EGhz processor (800Mhz system bus) and 120Gb hardrive with Windows 2K installed. The powersupply and video cards were replaced earlier this year as they over heated but have shown no signs of problems. Can anyone help??