From the Control Panel, open the Display utility. In the Display Properties window, click the Settings tab, then click Advanced. The method for adjusting the settings varies by brand; you may need to click a Monitor tab, then make sure the external Monitor port is set as your primary display and/or enabled. See your computer’s documentation or online help for details.
If you’re using Mac OS X:You may need to set up your system to display on the projector screen as well as the LCD screen. Follow these steps:
1.From the Apple menu, select System Preferences, then select
Displays.
2.Make sure the VGA Display dialog box is selected.
3.Click the Arrange tab.
Select the VGA Display dialog box
Make sure Mirror Displays is checked
4. Make sure the Mirror Displays checkbox is selected.
34Projecting