Apple 640 manual Dialog box with a bomb appears

A dialog box with a bomb appears.

Your system has a software problem.

mNote what you were doing when the message appeared, and write down the text of the message.

mRestart your Macintosh. (See “Start Over” in the section “If You Have Trouble” earlier in this chapter for instructions.) Most software problems are temporary, and restarting usually corrects the problem.

mIf the problem recurs, check the startup disk and application program you were using when the dialog box appeared. Make sure that all programs, desk accessories, and system extensions you’re using are compatible with the system software. Reinstalling the system software or the program may correct the problem.

mSometimes incompatible system extensions or control panels can cause system software problems. Restart while holding down the Shift key; this temporarily turns off all system extensions. If your computer works normally after you do this, use the Extensions Manager control panel to turn on extensions and control panels one at a time. Restart after you turn on each extension. This procedure should identify incompatible extensions and control panels.

For information on using the Extensions Manager control panel to manage

system extensions, see the “Setting Options” topic of Macintosh Guide, available in the Guide (h) menu.

mIf the problem recurs, you may need to reinstall system software. See the Macintosh Performa CD booklet for instructions.

Troubleshooting in the Macintosh Environment 89