Computer boots fine. Gets to windows XP loading screen, as soon as it trys to switch to the blue screen i hear the monitor click off. Monitor power is still there just no image. I can click the start menu button and hit keys and i can hear the computer doing things. What could cause this? Faulty GeForce 4??? -Ive also tried 2 different monitors. Also what key do i hit to start in safe mode? Thanks alot!