Apple Mac mini (Mid 2011) - Manual (Page 49)

49 Chapter 4 Problem, Meet Solution
An Ounce of Prevention
If you have a problem with your computer or software, having kept up-to-date
Time Machine backups ensures that your data won’t be lost. If you make regular
Time Machine backups, you can restore your software and all your data to exactly
the way it was at the time of the backup. Even serious issues are of less concern
when you safeguard your information with Time Machine.
Problems That Prevent You from Using Your Mac mini
If your Mac mini won’t respond or the pointer won’t move
 Make sure the mouse and keyboard are connected. Unplug and then plug in the
connectors, making sure they’re secure. If you have wireless input devices, check that
the device batteries are charged. Try turning off and on any wireless device.
 Try to force problem applications to quit. On an Apple keyboard, hold down the
Option key and Command key (x) and then press the Esc key. On other keyboards,
hold down the Windows key and Alt key and then press the Esc key. If a dialog
appears, select the frozen application and click Force Quit. Then restart your Mac mini
to be sure the problem is entirely cleared up.
 Hold down the power button (®) on the back of your Mac mini for five seconds to
shut it down.
 Unplug the power cord from your Mac mini. Then plug the power cord back in and
press the power button (®) to turn your Mac mini on.