Technical information

Problems with the trackpad or keyboard
The pointer (8) doesn’t move when you move your finger on the trackpad.
One of the following situations is probably the cause.
m The trackpad or keyboard is not connected properly.
Turn off the computer by pressing the Power key (π) and then press the Return key to choose
Shut Down. If that doesn’t work, press the power button on the back of the computer. With the
computer off, check that the trackpad and keyboard cables are connected properly. Then start
up the computer again.
Important Do not connect or disconnect the trackpad while the computer is turned on. You may
damage your computer.
m Signals from the trackpad are not reaching the computer, either because the trackpad needs cleaning
or because there is something wrong with it.
Clean the trackpad according to the instructions in Appendix A, “Health, Safety, and Maintenance
Tips.”
If you have a mouse or other pointing device, turn the computer off and then try connecting and
using the alternative pointing device. If the alternative device works, there is probably something
wrong with the trackpad. Consult the service and support information that came with your
computer for instructions on how to contact an Apple-authorized service provider or Apple for
assistance.
m There is a software problem. Try the following:
Press x-Option-Esc to quit the application program in use when the problem occurred. If this
works, you can save the documents open in other applications before restarting.
Restart your Macintosh. For instructions, see Chapter 11, “Start Here If Trouble Occurs.”
m Follow the suggestions in the problems related to the computer “freezing,” earlier in this chapter.
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