To clean the mouse or trackball

If you have a mouse that does not use Marble technology and the cursor skips or moves abnormally, you may need to clean the pointing device ball.

1. Remove the retainer ring to remove the ball. On the bottom of the mouse, press in the direction of the Open arrow imprinted on the retainer ring cover.

2. Wipe the ball with a clean, lint-free cloth, then blow carefully into the ball-cage to dislodge dust and lint.

3.  Look for a build-up of dirt on the rubber roller(s) inside the ball-cage. This build-up usually appears as a stripe running around the middle of the roller.

4. If dirty, clean the roller(s) using a cotton swab moistened lightly with isopropyl (rubbing) alcohol. After cleaning, make sure the roller(s) are still centered in their channels.

5. Make sure that fluff from the swab is not left on the roller(s).

6. Replace the ball and retainer ring.