vertical coloured lines of pixels (if this is the problem) can be a bad connection inside the monitor - send it back if possible
jim, February 2006
Check the video card, might not be seated well or has come loose. Also check your monitor against another computer, also the video card might be going out....
Rusty, January 2006
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I can answer this question...
my hp monitor have streaks on the right side of my screen?