My monitor screen has areas of discolouration that mysteriously move and change shape like Jupiter's spot. What are these troublesome spots, and how can I rid myself of them?
They're most likely caused by magnetic fields that accumulate on monitors when users run them continuously. The fix is easy: just neutralise these rogue fields by pushing the degauss button - often labelled with a picture of a magnet - on the front of your monitor. If there's no button, turn your monitor off and on once. Most monitors automatically degauss their screens when they power up. See also tip Monitor won't display red
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