Apple Macintosh PowerBook 150 - Manual (Page 111)

m Restart from a floppy disk.
1. Insert the Utilities disk into the floppy disk drive.
2. Press the Power On button.
If the computer restarts from a floppy disk, there may be a problem with your
hard disk. You may be able to fix the problem yourself (using the Disk First
Aid program or another disk repair program); see the Macintosh Reference
book for help.
The computer just stopped.
m The computer may have gone to sleep. Press any key (except Caps Lock)
or press the Power On button to wake the computer again.
m The battery may have drained so far that the computer has put itself to
sleep to protect the contents of RAM. Plug in the power adapter and then
press any key (except Caps Lock).
m The computer may have “crashed” due to temporary software problems.
Click the Restart button on the screen (if you see one) or choose Restart
from the Special menu. If these suggestions don’t work, restart the
computer using the methods described in “The Computer Won’t Restart”
earlier in this section.
The computer exhibits odd behavior, such as unexplained system failures.
m A common cause of unexplained problems is multiple System Folders on
your computer’s startup disk. The icon for the System Folder that the
PowerBook is using to operate looks like this:
Use the Find command in the File menu to locate any other System
Folders, and throw them in the Trash. (If you use a RAM disk as a startup
disk, do not delete the System Folder from your RAM Disk Backup folder.)
m You may have a virus on your hard disk. Obtain a virus-detection program,
use it to check all your disks, and eliminate any viruses the program finds.
103 Tips and Troubleshooting