Apple Power Macintosh 4400 - Manual (Page 100)

m If the problem recurs, you may need to reinstall system software. See
“Installing or Reinstalling System Software” later in this chapter
for instructions.
Your screen displays a right angle-bracket prompt (>) in a blank dialog box.
Your computer has tried to launch a “debugging” application, but could not
find one on your hard disk. Debugging applications are programs that software
developers use to locate and fix problems in computer code. If you do not have
a debugging application installed, your screen displays a right angle-bracket
prompt (
> ). To return to the desktop, type G and then press Return.
The pointer (
8
) doesn’t move when you move the mouse.
One of the following situations is probably the cause:
m The mouse or keyboard is not connected properly.
Check that the mouse and keyboard cables are connected properly, and
then restart the computer.
m Signals from the mouse are not reaching the computer, either because the
mouse needs cleaning or because there is something wrong with it.
Clean the mouse according to the instructions in Appendix A of this book.
If you have another mouse or pointing device, try connecting and using it.
(Turn off the computer before connecting it.) If the new device works, there
is probably something wrong with the mouse you replaced.
m Your system has a software problem.
Press x-Option-Esc to quit the application program in use when the
problem occurred. If this works, you can save the documents open in other
programs before restarting.
Restart your Macintosh. See “Start Over” in the section “When You Run
Into Trouble” earlier in this chapter for instructions.
100 Chapter 6