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m To find out if a system extension or control panel is the problem, use the
Extensions Manager control panel. Open the Extensions Manager control
panel and select “System 7.5 Only” to turn off all system extensions and
control panels that are not part of System 7.5. Restart your computer, then
use the Extensions Manager control panel to turn the system extensions
and control panels back on one at a time, restarting and checking your
computer’s performance each time until you identify the software that is
causing problems. Contact the software’s manufacturer for information or
an upgrade.
m To find out if a custom utility you’ve added is the problem, drag it out of
the System Folder. (This software may be in the Control Panels folder or
elsewhere inside the System Folder.) Next, restart your computer and check
its performance. If there’s an improvement, the new software was probably
the cause of the problem. Contact the software’s manufacturer for
information or an upgrade.
m If you turn on both virtual memory and the RAM disk in the Memory
control panel (in the Control Panels folder in the Apple [K] menu), don’t
set both of them at or near their maximum values. Doing so can result in
unpredictable or reduced performance by your computer.
Note: Not all application programs work well with virtual memory turned
on. For more information on both the virtual memory and RAM disk
features, see the Memory topic of Macintosh Guide, available from the
Guide (h) menu.
m Rebuild your desktop. For instructions on how to rebuild your desktop, see
“Rebuild Your Desktop” in the section “If You Have Trouble” earlier in this
chapter.
If you still do not notice an improvement, follow the instructions in
“Installing or Reinstalling System Software” later in this chapter to reinstall
system software on your startup hard disk.
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Troubleshooting