Apple Macintosh Performa 5400 Series - Manual (Page 68)

m If the hard disk is your startup disk, start your computer with the Macintosh
Performa CD: Performa Software. (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 instructions in “Repairing a Damaged Disk” later in this
chapter to test your startup hard disk and repair any damage.
If repairing the disk doesn’t help, follow the instructions in Chapter 7,
“Installing or Reinstalling Your Software,” 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 disk. For instructions, see “Rebuild
Your Desktop” in the section “If You Have Trouble” earlier in this chapter.
If icons do not appear correctly after you rebuild the desktop, try rebuilding a
second time.
Your Macintosh can’t read a floppy disk.
If you see a message that a floppy disk is unreadable, try one of the following:
m If the disk has never been used, you may simply need to initialize it—that
is, prepare it for use. For instructions, see the “Disks” topic of Macintosh
Guide, available in the Guide (h) menu.
m The disk may be damaged. See “Repairing a Damaged Disk” later in this
chapter for information on testing and repairing disks.
m The disk may have been formatted for use on another kind of computer.
You may be able to use a program that lets you work with such disks on
your Macintosh.
If you are trying unsuccessfully to use a DOS floppy disk, consider the
following:
m Make sure the PC Exchange control panel is in the Control Panels folder
(in the Apple [K] menu) and that it is enabled. To enable PC Exchange,
open the Extensions Manager control panel and click the PC Exchange
item (under the Control Panels heading) to make a checkmark appear.
Then restart your computer.
67 Troubleshooting