7
Wipe the ball with the clean, dry cloth. Do not use a cloth which may leave lint,
and do not use cleaning liquid on the ball.
To replace the ball and retainer, take the following steps:
1
Turn the mouse upside down and place the ball back in the case.
2
Return the retainer to its original position (lock it in place by twisting it clockwise
by a quarter of a turn).
Appendix A: Maintaining your computer