If You’re Using a PowerBook Running OS X . . .
You may need to set up your system to display on the projector as well as the LCD screen. Follow these steps:
1.Select System Preferences from the Apple menu.
2.Click Displays.
3.Click Detect Displays to display part of your desktop on the projector screen.
Click here
4.To display the entire desktop on both your projector screen and LCD screen, click the Arrange tab. (If you don’t see this tab, check to see if there is a window hidden by another window on your screen.)
Using the Projector 27