|If your power supply was really producing a voltage that far out of whack your PC wouldn't be working at all. Basically what I'm saying is that your PS is okay. Some PC monitoring chips have problems giving the right readings in Windows.|
If you jiggle the cable that goes from the monitor to the PC, does the picture on the monitor change?
You may have a problem with your video card, that is, if your PC has one. If the video is integrated onto the motherboard, that chip may be going bad.
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