Is your monitor new or old?
I've seen some examples of this problem: If it's a CRT monitor and it's also old (including surplus or refurbished monitors), there could be a problem with the VGA plug/socket (loose or bent pins) or the picture tube itself. Banging the side of the monitor as a temporary measure to clear up the "redness" is not recommended, as it could further damage the monitor.
Although it's possible to have a television/monitor technician to correct severe cases of this problem, it's better to replace the monitor with a new one (quality 17" CRTs are now affordable).
Last edited by sa547; 2009-03-18 at 03:47.
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