Trackball is an old lady

[More Cowbell]

I installed my usb trackball almost three years ago and have never had a problem. All of a sudden it works only when I move it fairly slowly. It won't go fast. It seems to be a trackball issue because the cursor actually stops when I spin it too fast. I checked the mouse setting and the accellerate settings haven't been changed. Any ideas?

[SirPeale]

Does it need cleaning?

Have you changed any settings?