mSometimes incompatible system extensions or control panels can cause system software problems. Restart while holding down the Shift key to temporarily turn off all system extensions.
If your computer 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” or “Setting Options” topic of Macintosh Guide, available in the Guide (h) menu.
If your computer performs better when a particular extension or control panel is turned off, contact the extension’s or control panel’s manufacturer for information or an upgrade.
mIf the problem recurs, you may need to reinstall system software. See “Installing or Reinstalling System Software” later in this chapter for instructions.
The pointer (8) doesn’t move when you move the mouse.
One of the following situations is probably the cause:
mYour system has a software problem.
Press
If that doesn’t solve the problem, follow the suggestions in the previous section, “A Dialog Box With a Bomb Appears.”
mYour keyboard or mouse cable connection may have been loosened or disconnected. Turn the computer off using the power button on the front of the computer, check that the mouse and keyboard cables are connected properly, and then restart the computer.
IMPORTANT Do not connect or disconnect the mouse or keyboard while the computer is turned on. You may damage your computer.
