How To Connect a Video Projector to a Mac

Connect your MacBook DVI or Micro-DVI cable to the side of your MacBook. Consult your Mac's documentation if you are unsure which jack you have. Connect the other end of the cable to your video projector.
Switch the projector on.
Click the Apple logo on the taskbar, then click 'System Preferences.'
Click 'Displays.' Click 'Detect Displays.'
Select the new display and change the resolution to the highest available. You now have two displays ready to use with your MacBook.
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How to Get My Viewsonic Projector to Work on My Mac

Check the type of 'video out' connector your Mac has. Typically Macs feature a DVI or a Micro-DVI port. Consult your computer's user documentation if you are unsure.
Connect your Mac to the projector using the connection cable provided with the projector. If you need to use a converter cable as well, connect it to the Mac.
Turn on your projector.
Click the Apple logo on the task bar. Click 'Displays.' Click 'Detect Displays.'
Change the resolution for the projector if needed. Your ViewSonic Projector will now work with your Mac.
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