Actually, that does help. I noticed that my old P4 computer's neon lights would flicker sometimes, but never thought about the graphics card at all. I thought about it after reading your post and remembered that they always worked fine before I installed a GeForce FX 5200 Ultra. My new computer has never had anything but the 5950, so I have no way to know if that's the problem...but it seems to be. It's obviously nothing to do with the mouse, because I can turn the wheel without any flickering...as long as a page is not scrolling when I do so. As soon as a page scrolls, the flickering begins. Oh well. It doesn't bother me that bad...it's just annoying sometimes.