The Computer is a HP Pavillion a200n 2.4GHz Celeron processor the OS is XP. The Video Drivers were deleted from the device manager accidently on stupid! While attempting to up grade to a ATI Rage 128 Pro 32 MB. These drivers were not installed yet and the bios had not been set for PCI. Upon restarting the computer there was a blank screen the flat screen CRT monitor green LED light went from green to amber a screen a little white box comes up for a few seconds that says (power save) and black screen. I have checked the Monitor and VGA cable on a different computer it works fine. I have also connected a different CRT monitor to the computer with the same results as the first one and plugged in to both VGA cards. Just a black.