User guide

Chapter 4 Problem, Meet Solution 57
3 When the Apple Hardware Test chooser screen appears, select the language you want
to use.
4 Press the Return key or click the right arrow button.
5 When the Apple Hardware Test main screen appears (after about 45 seconds), follow
the onscreen instructions.
6 If Apple Hardware Test detects a problem, it displays an error code. Make a note of the
error code before pursuing support options. If Apple Hardware Test doesn’t detect a
hardware failure, the problem may be software related.
If this procedure doesn’t work, you can insert the Applications Install DVD and hold
down the D key to use Apple Hardware Test.
Problems with Your Internet Connection
Your MacBook has the Setup Assistant application to help walk you through setting up
an Internet connection. Open System Preferences and click Network. Click the “Assist
me” button to open Network Setup Assistant.
If you have trouble with your Internet connection, you can try the steps in this section
starting with Network Diagnostics.
To use Network Diagnostics:
1 Choose Apple () > System Preferences.
2 Click Network and then click “Assist me.”
3 Click Diagnostics to open Network Diagnostics.
4 Follow the onscreen instructions.