Apple Macintosh PowerBook 1400 - Manual (Page 95)

A program won’t open.
m The application program may already be open. Check the Applications
menu to see what programs are running.
m There may not be enough memory available to open the program. Quit any
programs you’re not using and try again. If that doesn’t work, try restarting
the computer.
m If the program is on a floppy disk, make sure the disk is unlocked. (You
unlock a disk by sliding the tab at the corner of the disk so that it covers
the hole.)
m The program may be damaged, or it may not be compatible with PowerPC
technology. Check to make sure the software is PowerPC compatible, and
install it from a known good source (such as the original program disks).
m Contact the manufacturer or vendor of the program to see if the program is
compatible with System 7.5.
A program suddenly quits or disappears, or a message says a program has quit.
m There may be a temporary software problem. Restart the computer, then
try opening the program again.
m The program may have run out of memory. See the suggestions in “A
Message Says There is Not Enough Memory,” next.
m If the problem occurs when you are trying to print, there may not be
enough memory for printing.
m Contact the manufacturer or vendor of the program to see if the program
contains software errors or “bugs” and if it is compatible with the version
of system software you’re using.
A message says there is not enough memory.
m There may be a temporary software problem. Save your work, quit all open
programs, and restart the computer. If you can’t use the Restart command,
see the suggestions in “The Computer Freezes or Displays a System Error
Message,” earlier in this section.
95 Tips and Troubleshooting