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If, for some reason, a Macintosh application freezes or locks up, but the
keyboard is still responding, you may be able to fix the problem without
restarting.
Hold down the Command and Option keys and press the
Escape key, the Force Quit window will appear. Select the
application that has stopped responding and click the Force Quit
button.
This will allow you to save any work in other open applications. You will NOT, however, be
able to
save any changes in the frozen application.
Once the frozen application has shut down, save any unsaved changes in
other applications, and log out of any account that you may be using. To be on
the safe side, you should restart the workstation.
Occasionally, a Macintosh application will not launch from the Dock,
quit, or an application's icon will become a question mark. This is
usually a problem with the application itself, not the Dock.
If you try to launch an application from the Dock and the icon begins
to bounce, but the application never loads. Force Quit the application
using the steps described above in Frozen Application. If you have quit an
application but the icon remains in the Dock, you may also use those
steps to rid the Dock of the icon.
If an application's icon in the Dock disappears and becomes a question
mark, this means the item in the Dock can't
be found. At this point, the application cannot be launched from the
Dock. This often happens when you upgrade, move, or delete an
application.
Drag the question mark icon to the Desktop and it will disappear. Open
the Applications folder on your Hard Drive. Drag the missing
application's icon to the Dock.
If you Macintosh does not wake from sleep, usually a forced restart is the only way to
make the system respond again. To avoid the problem in the future, there are
several basic steps you can take to try to help your computer wake from sleep
normally:
- Reset the PRAM. See Mac: Clearing
Information Stored in Parameter RAM
- Before allowing your computer to sleep, properly disconnect all external USB and Firewire devices.
- Perform a Software Updates to get all the latest patches for your
computer.
- Download and install all necessary Firmware Updates for your computer.
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