Apple's Macintosh Operating System (Mac OS) is extremely user-friendly. On their recent notebook models--iBook, MacBook, Macbook Air and Macbook Pro--performing a reboot is universal on all machines. Here's how to do it.
Locate the Apple menu in the upper-lefth side of the menu bar. The Apple menu isn't represented by a word, it actually looks like an Apple.
Click the Apple menu and scroll down to the "Restart" option.
Click "Restart" on the window that opens up. A countdown timer also appears in the window. If you don't click "Restart" the computer will reboot automatically when the timer reaches zero.
Locate the power button on the keyboard. It is the same one you use to turn on the computer.
Press the power button.
Click "Restart" in the window that opens.
If your Mac notebook freezes up, you may see a spinning colour wheel or a spinning black and white wheel where your mouse pointer should be. You may not see your pointer at all. Or you Mac might not wake up after being asleep. If these things happen, you will have to perform a "hard restart."
Hold down the power button for ten seconds. The screen will go dark and the computer will be turned off.
Press the power button again to restart the computer.
The Genius Bars located at Apple Store retail locations are a great resource for all Mac issues. For advice and repairs, simply walk into any Apple store, or make an appointment online at Apple.com.