Why does my computer screen go blank after booting up to the XP logo screen?

Episode 922 (18:13)

Gary from La Verne, CA

Leo says if the monitor doesn't get a signal from the VGA card, it'll turn off, but it could be several things. Check the monitor, then the cable. Those are the easy things. If those things are working, then the computer may be failing on boot. That usually sends an error message, though. Another possibility is that the the power supply may be failing. He could try replacing that too.