Hello, I have a Lenovo Thinkpad with Windows XP and I have this weird problem with it. Every so often, a pixel on my screen will turn white, and I have no idea why. It isn't a dead or stuck pixel, because when move my cursor over it, the cursor changes into a shape I don't recognize, and I can "close" the pixel with
Alt-F4 after clicking on it. It doesn't really affect anything, but it drives me...