Specifications

A high-density (1.4 MB) disk you use with your PowerBook computer is not recognized
by another computer.
m Some disk drives cannot recognize high-density disks. Try inserting an
800K or 400K disk in the disk drive of the other Macintosh. If that works,
copy your files to an 800K disk or a 400K disk. If you regularly plan to use
floppy disk drives of different types, use the lower-capacity disks in all
drives.
You can’t eject a disk from a floppy disk drive.
m There may be a temporary mechanical problem with the disk drive. Restart
the computer and hold down the trackpad button while the computer starts
up. If that doesn’t work, carefully insert the end of a straightened paper clip
into the small hole near the disk drive’s opening, and push gently until the
disk is ejected.
A message says that a disk is not initialized—but you know that it is.
m The disk may not be seated properly in the disk drive. Eject it and try
inserting it again.
m The disk may be damaged. If you insert another disk in the drive and the
message does not appear, the original disk probably needs repair. See the
Macintosh Reference book. If the second disk is also not recognized, the disk
drive may be damaged. See an Apple-authorized service provider for
repair.
m The disk may use a format that the Macintosh cannot recognize. You can
use PC Exchange (see Appendix C) to translate some disks and file
formats.
m Restart the computer, holding the Shift key down, until you see the
message “Extensions off.” If this solves the problem, drag any control
panels or extensions you recently installed to the Trash.
You can’t delete a file on a floppy disk.
m The disk may be locked. Unlock it by sliding the tab so that it covers the
hole at the corner of the disk.
m The file may be locked. You can unlock it in its Info window (choose Get
Info from the File menu). Or you can hold down the Option key while you
choose Empty Trash from the Special menu.
m An application program may be using the file. Quit the program and try
again.
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Chapter 12