Video Stuck in Power Save Mode

[GeneW]

Computer has Windows XP, home edition.

When I power up computer, the monitor remains in power
save mode. I have verified the monitor and the video
card are working properly by using these devices on a
second computer I have at home running the same OS.

It seems that the OS on the first computer is stuck on
telling the monitor to immediately go to a power save
mode.

Any suggestions on how to recover from this situation?

Thanks in advance.