54 Chapter 5
The hard disk icon does not appear on the desktop.
If you don’t see a hard disk icon on the desktop, try the following:
mIf the hard disk is internal, shut down your computer, wait at least 10
seconds, and then turn it on again.
mIf the hard disk is external, make sure that it is turned on and that its cable
is connected firmly; then restart the Macintosh.
mCheck the ID numbers of all SCSI equipment connected to your computer.
See the manuals that came with your SCSIequipment for information on
setting SCSIID numbers.
mIf the hard disk is your startup disk,start your computer using the Utilities
floppy disk or, if you have a built-in CD-ROMdrive, with the Macintosh
Peforma CD. (For instructions on how to start up your computer from the
CD-ROM disc, see “Starting Up From a CD-ROM Disc” in the section
“Repairing a Damaged Disk” later in this chapter.) Then follow the rest of
the instructions on repairing a disk to test your startup hard disk and repair
any damage.
If repairing the diskdo esn’t help, follow the instructions in “Installing or
Reinstalling System Software” later in this chapter to reinstall system
software on your startup hard disk.
Icons do not appear correctly on your screen.
You need to rebuild the desktop—a process that helps your Macintosh keep
track of files and folders on your hard disks. For instructions, see “Rebuild
Your Desktop Regularly” in the section “When You Run Into Trouble” earlier
in this chapter.
If icons do not appear correctly after you rebuild the desktop, restart your
computer while pressing the Shift key to temporarily turn off system
extensions. When you see the “Welcome to Macintosh—extensions off”
message, release the Shift key and press the Option and xkeys until you
see a message asking if you want to rebuild the desktop.