Fortunately for most cases, there is a simple solution to why your mouse pointer would jump around the screen.
My infrared Microsoft Intellimouse is being erratic. Doesn’t follow the direction of the hand movement and lags behind sometimes not moving. I have checked all settings and drivers as much as I know how.
Erratic mouse movement is a pain. You move one way, and the mouse jumps around the screen – often to some other random location.
In most cases the solution to a jumping mouse pointer is actually pretty simple.
Optical mice are great – I love ‘em. No more dirty mouse balls (and the jokes that go with them). Over time I’ve converted all of my mice to optical, both wired or wireless.
But what I’ve found with optical mice is that they are surprisingly sensitive to the surface they’re on. On a bad surface they’ll often behave exactly as you describe. They seem to not only stop responding, but occasionally misread movement and dart off in completely unexpected directions … like a mouse scurrying for cover.
The best surfaces for the mouse would be something with a slight texture, and a constant surface. Make sure there’s no high contrast text or images as well.
After not using mouse pads for a long time, I’ve found that they’re typically the best solution and very helpful in keeping my optical mice behaving.