Symptom
When you connect a VGA monitor to your PowerBook G4 computer and do not click "Detect Displays" in the Displays pane of System Preference Pane (or choose the same command from the Displays menu bar extra) the video on the monitor may be garbled.
Solution
Download and install Mac OS X 10.1.4 or later. It is available from the Software Update pane of System Preferences, or from Apple Software Downloads (
http://www.apple.com/swupdates/).
Temporarily, you may resolve the issue by using one of these methods:
- Click Detect Displays in the Displays pane of System Preferences
- Choose Detect Display from the Displays menu bar extra
- Choose Sleep from the Apple menu, then press a key to wake the computer
- Choose Restart from the Apple menu.