If your monitor is a CRT, try moving electronic devices (speakers, amplifiers, etc.) away from your monitor. Many unshielded/poorly shielded electronic devices can produce a magnetic field that will deflect electrons from the elelctron gun in a CRT. This can look like a cloud or a faint rainbow in a portion of the monitor.
there is a very dark blue cloud on the face of the computer in the left corner, has been there for about too weeks. it looks like a cloud spreading downward.
I have os window me and a hewlett packard pavilion monitor. What could the problem?
Thanks

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