Apple Power Macintosh 7600/120 Series - Manual (Page 94)

m If the hard disk is your startup disk, start your computer using the Disk
Tools floppy disk or (if you have a built-in CD-ROM drive) with the
CD-ROM disc that contains system 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 “Initializing a Hard 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 “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 disk. For instructions, see “Rebuild
Your Desktop Regularly” in the section “If You Have Trouble” earlier in this
chapter.
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. 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 If the disk is a high-density disk previously used on another computer, the
disk may have been formatted incorrectly as an 800K disk rather than as a
1440K (high-density) disk. If so, use the other computer to copy the disk’s
contents onto a properly formatted disk.
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.
You can’t eject a floppy disk.
If you can’t eject a floppy disk in the usual way, try the following in order:
m Hold down the x and Shift keys and press the number 1 key on your
keyboard to eject a disk in the internal disk drive.
83 Troubleshooting