1. Projector and Macbook Air Settings We have checked and it seems the best display settings are 1280 X 768, 60 Hz in system preferences on Macs The Projector's Aspect Ratio should be changed to 4:3

2. Go to system preferences by clicking on the apple or Go to Spotlight ( COMMAND + SPACE BAR ) Spotlight. Select > Displays

3. In Displays > with your projector plugged in using your dongle Make sure you have it set in the Arrangement tab to mirror Change in the Display tab to 1280 X 760 60Hz Quit System Preferences (see Screen Shots)

4. Projector Setting On your projector remote go the the menu Scroll down to Signal and select it Scroll down to Aspect and select it Change the Aspect to 4 : 3 Exit by selecting menu again

5. That should work… If not contact the Help DeskHelp Desk http://www.everonit.com/techtips/wp-content/uploads/2013/07/computer_frustration.jpg