Doug McNutt wrote:
At 10:40 -0500 2/14/05, Carl F. Hall wrote:
I have an overlap at the bottom of the screen that is a copy of the first 10-15 pixels of the top of the screen. I'm running at 1280x1024. When I switch to 1024x768, the problem doesn't show. I've tried adjusting the monitor but there are useful things, namely the status bar, behind that overlap.
Sounds like a typical hardware problem. The internal adjustment in your monitor is probably called vertical phase. The monitor is failing to synch tightly to the vertical synch pulses form the video card when the rate is pushed too high. If you're lucky it's just an internal adjustment but it's more-often due to change in value of a capacitor on the printed circuit board. I doubt that those pixels are actually copies but if they are I'm all wrong. The video card would have to be thoroughly messed up to send some pixels twice.
It's extremely rare for that kind of problem to originate in a video card.
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