Since installing XP SP2, I now have a mouse pointer that insists on wandering either north or west on my computer screen. (And only north or west.) Troubleshooter tells me all is fine, I've gone into the mouse set up and can see no problem. I use a mouse pad with a gel wrist rest, and have noticed it tends to happen most when I'm holding the mouse prior to clicking anything. Over sensitive to vibration? It happens in all programmes, even games. Any ideas welcome.
Balled or optical? If ball mouse then try cleaning the ball and the rollers inside it. The bottom plate should come off with a twist and the ball will drop out. Clean the rollers carefully with a tooth pick and reassemble.
Hmmm, I bought a new Tiny PC and the optical mouse which came with it does the same thing. Wanders off on its own - not all the time, but irritating when trying to click on something and it dithers off diagonally. Will borrow another mouse to see if same thing happens or not. Maddening when it's new.
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