My macbook pro doesn't turn and has a black screen.  Fan is running though. Does anyone know what to do?

Does anyone have any advise when a Macbook Pro doesn't boot and has a blank screen?  The fan is running but there are no backlights working.

Depending on your model MBP, see Article: http://support.apple.com/kb/TS2377 MacBook Pro: Distorted video or no video issues These computers were manufactured between approximately May 2007 and September 2008
If you are under warranty and/or have AC, give them a call. 
Out of warranty, take your MBP to your local AS and/or AASP. 

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