How to Hook a MacBook to a Projector

Make sure both the projector and the MacBook are connected to a power source and powered on.
Plug the mini-DVI adapter into the appropriate port on the side of your MacBook.
Connect one end of the VGA cable to the mini-DVI adapter and the other end to the VGA port on the projector.
Click on the apple icon in the upper-left corner of the MacBook's screen and select 'System Preferences.'
Go to the 'Displays' control panel under the 'Hardware' heading.
Click on the 'Detect Displays' button to synchronize the images on the MacBook and the projector. If the MacBook's image does not appear on the projector, you may need to press the 'Source' button on the projector until you get to the 'VGA' or 'Computer' option.
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