HT5362: Using Notifications in OS X Mountain Lion and Mavericks
Learn about Using Notifications in OS X Mountain Lion and Mavericks
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Q: Mail will not shut down or open
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Jan 16, 2014 1:05 PMby dominic23,Press command + option + esc keys together at the same time.
Wait.
When Force Quit window appears, select the application if not already.
Press Force Quit button at the bottom of the window.
Wait.
Application will quit.
If this does not help, press the power button for 7 or more seconds.
Computer will shut down.
Restart.
