IBM Aptiva Reference Manual page 48

If the problem is...
Mouse does not move the
cursor
44
Here's what to do...
1 Move the mouse onto a mouse pad (or a similar
surface) and try using it.
2 Make sure you are using a program that allows the
use of a mouse. Some programs do not.
3 Make sure the mouse cable is correctly and securely
connected to the mouse port (not the keyboard port)
on the back of the system unit.
The mouse port has a green label and this symbol
next to it:
4 Turn off the system, wait 15 seconds, and then turn
the system on again.
5 Clean the mouse. To clean the mouse, follow these
steps:
a. Turn off the computer.
b. Disconnect the mouse cable from the system
unit.
c. Turn the mouse upside down. Unlock the retainer
on the bottom of the mouse by turning it
counterclockwise. Now turn the mouse right side
up, and the retainer and the ball will drop out.
d. Using a damp cloth, wipe the outside of the
mouse and the retainer. Be sure to wipe the
rollers inside the mouse.
e. Insert the ball and retainer. Lock the retainer by
turning it clockwise.
f. Reconnect the mouse cable to the system unit.
g. Turn the computer on.
If any of these problems continue after taking the actions
listed, run the diagnostics programs that came with your
computer. If you need service, see "HelpWare support and
services" on page 79.
Solving hardware problems