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Hard disk
The computer won’t start up from the internal hard disk, or the hard disk icon doesn’t
appear on the desktop.
m There may be a temporary software problem. Turn off the computer, wait
at least 10 seconds, and then turn it on again.
The hard disk keeps stopping and starting again.
m The hard disk may be going to sleep to conserve power. Use the
PowerBook control panel to change the power conservation settings.
The computer is using the wrong disk as a startup disk.
m Open the Startup Disk control panel and make sure the correct disk is
selected. Then restart the computer.
m If you’re trying to start up from an external hard disk, the computer may
not be recognizing the disk. See “SCSI Equipment and SCSI Disk Mode”
later in this section. (If you want to force the computer to start up from an
external hard disk, hold down the Command (x), Option, Shift, and Delete
keys while you restart. This procedure makes the computer bypass the
internal hard disk when looking for a startup disk.)
m There may be a problem with your startup disk or with its system software.
See “Testing Your Hard Disk” in Chapter 8.
Tr ackpad
The pointer won’t move.
m A program may be doing some work. Wait a few moments and then
try again.
m A temporary software problem may have caused the computer to “freeze.”
See “The Computer Freezes or Displays a System Error Message” in the
section “Problems Working With Programs,” earlier in this chapter.
The pointer sticks or jumps when I use the trackpad.
m Make sure to use only one finger on the trackpad and that your finger
is dry.
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Tips and Troubleshooting