I downloaded the new osx mavericks system, and it would not recognize my external monitor.  I have a macbook pro.

Any ideas on how to get my new osx mavericks that i just downloaded to recognize my external monitor?

Hello maggiefromloudon,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Best of luck,
Mario

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