Help brand new 23" display won't start up

Is it already broken? I just took it out of the box and connected it and nothing's happening.

Hi-
Did you try "Detect Displays" (in your System Preference/Displays) after you connected? Did you connect while the Macbook Pro was powered on, "hot swapping"?
Does the following article help:
http://docs.info.apple.com/article.html?artnum=305607

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