Apple Power Macintosh 8100 Series - Manual (Page 78)

If the problem recurs, you may need to reinstall system software. See
“Installing or Reinstalling System Software” later in this chapter for
instructions.
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.
Turn off the computer using the power switch, 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 switch 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.
Many Macintosh computers have two ADB ports on the back panel. Also,
some monitors have one or two ADB ports. Turn off the Macintosh using
the power switch and connect your keyboard cable to a different ADB port
on the computer or monitor. 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.
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.
68 Chapter 5