Gateway LE500 - Picture Bounces, Jitters, or Has Waves

Troubleshooting
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Picture bounces, jitters, or has waves
Make sure that:
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Non-shielded speakers are not placed too close to the monitor.
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The monitor is not positioned too close to another monitor, electric fan, fluorescent
light, metal shelf, or laser printer.
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If none of these suggestions solves the problem, try plugging the monitor into another
outlet, preferably one on a different circuit.
Picture has shadows or “ghosts”
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Remove any extension cables or switchboxes.
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Check the video connector and the end of the video cable for any pins that might
be bent or pushed in.
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Make sure the video cable is securely connected to the back of the monitor and to
the back of the computer.
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Make sure that the video cable is not damaged.