Apple MacBook Air - Manual (Page 43)

Chapter 3 Problem, Meet Solution 43
 If you still can’t start up your MacBook Air, see “Learning More, Service, and Support”
on page 53 for information about contacting Apple for service.
If the display suddenly goes black or your MacBook Air freezes
Try restarting your MacBook Air.
1 Unplug any devices that are connected to your MacBook Air, except the power
adapter.
2 Press the power (®) button to restart the system.
3 Let the battery charge to at least 10 percent before plugging in any external devices
and resuming your work.
To see how much the battery has charged, look at the Battery ( ) status icon in the
menu bar.
The display might also darken if you have energy saver features set for the battery.
If your MacBook Air can’t connect to another computer’s optical disc drive
To use services such as Migration Assistant, DVD or CD Sharing, Remote Install
Mac OS X, and iTunes music sharing, both your MacBook Air and the other computer
must be connected to the same network. If your MacBook Air is connected wirelessly
and the other computer is connected to a third-party router by Ethernet, check your
router documentation to make sure it supports bridging a wireless to wired
connection.