Apple Power Macintosh 7600/120 Series - Manual (Page 96)

You can’t start an application program, or it quits unexpectedly. Or, when you try to open
a program, you see a message that not enough memory is available.
One of the following is probably the cause:
m The Macintosh ran out of memory.
Quit the programs that you have open and then open the program you want
to use, or restart your Macintosh.
Make sure virtual memory is turned on (unless you changed the memory
setting, virtual memory was already turned on for you at the factory). If it
isn’t, use the Memory control panel to turn on virtual memory. For more
information on virtual memory, see the “Memory” topic of Macintosh
Guide, available in the Guide (h) menu.
m The program needs more memory.
Use the program’s Info window to give it more memory. For more
information on increasing a program’s memory, see the “Memory” topic of
Macintosh Guide, available in the Guide (h) menu.
m The program is a non-Power Macintosh application program running in
emulation mode that requires a separate floating-point unit (FPU). It
cannot use the built-in FPU on your computer’s microprocessor.
Check the documentation that came with the program or contact the
program’s manufacturer to find out if the program requires the FPU found
in a non-Power Macintosh chip. If it does, you may need to upgrade to a
Power Macintosh version of the program, or install software that emulates
a non-Power Macintosh FPU. (See your dealer for this software.)
m Sometimes incompatible system extensions or control panels can cause
software problems. Restart while holding down the Shift key to temporarily
turn off all system extensions.
If your program works normally after you do this, use the Extensions
Manager control panel to turn off individual extensions and control panels.
For detailed instructions, see the “Customizing Your Computer” topic of
Macintosh Guide, available in the Guide (h) menu.
If your program performs better when a particular extension or control
panel is turned off, contact the software’s manufacturer for information or
an upgrade.
85 Troubleshooting