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m Signals from the mouse are not reaching the computer, either because the
mouse needs cleaning or because there is something wrong with the
mouse.
Clean the mouse according to the instructions in Appendix A of this book.
If you have another mouse or pointing device, try connecting and using it.
(Turn off the computer before connecting it.) If the new device works, there
is probably something wrong with the mouse you replaced.
If none of these procedures solves the problem, 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.
Typing on the keyboard produces nothing on the screen.
One of the following is probably the cause:
m If the computer beeps every time you press a key, Easy Access is probably
turned on.
Open Easy Access from the control panels listed under the Apple ()
menu and turn it off.
m You haven’t selected any text or set the insertion point (i).
Make sure the program you want to type in is the active program. Then
place the pointer (8
) in the active window and click to set an insertion
point (i) or drag to select text (if you want to replace the text with your
typing).
m The keyboard is not connected properly.
Tur n off the computer using the power button on the front of the computer,
then check that the keyboard cable is connected properly at both ends.
If you have a keyboard with an ADB port (marked with the ◊ icon) on
each end, turn off the Macintosh using the power button and plug the
keyboard cable into the other ADB port on the keyboard. (You may have to
unplug the mouse to do this.) Then restart the computer.
m The keyboard is damaged.
If you have access to another keyboard, try using it instead. (Turn the
computer off before connecting it.) If the new keyboard works, there is
probably something wrong with the one you replaced.
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Chapter 6