Apple Macintosh PowerBook 1400 - Manual (Page 101)

Hard disk drive
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 “Problems with Equipment Connected to
Your Computer,” later in this chapter.
m There may be a problem with your startup disk or with its system software.
See “Testing Your Hard Disk” in Chapter 7.
m Try resetting the PRAM to reestablish the original startup settings for the
computer.
Trackpad
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 pad and that your finger is dry.
101 Tips and Troubleshooting