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The computer freezes as icons are appearing at the bottom of your screen (system
extensions are loading).
m Some equipment may not be correctly connected to your computer or an
individual piece of external equipment may be causing the problem.
Shut down the computer and disconnect external equipment. To determine
which piece of equipment is causing the problem, reconnect them one by
one and start up your Macintosh each time until the problem reoccurs.
m Tw o or more system extensions may be in conflict with each other.
Restart the computer, holding down the Shift key until you see the message
“Extensions off” in the Welcome to Macintosh box. If the computer starts
up, turn to “Checking Your System Extensions” in Chapter 11, “Diagnostic
Te c hniques.”
m If the computer still freezes, your System Folder may be damaged.
Follow the instructions in “Performing a Clean Installation of System
Software” in the “Installing System Software” section in Chapter 11.
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Solutions to Common Problems