I am using XP Professional on my Insprion 9300 laptop. Suddenly the bottom 1/5 of my screen has been blanked out. Otherwise, my system runs normally and responds to commands. But my task bar and quick launch icons are not visible. Since it appears to be a video problem I replaced my video card. (What an experience!) but no change. I updated the monitor driver. Still no change. I'm convinced the problem is hardware, but what piece?
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