When I went to start up the Thunderbolt display the monitor is completely dark

Just bought a Thunderbolt Monitor, hooked it up and scree is completely black

Mid 2009 MBP has a mini-displayport, not thunderbolt.  You cannot connect a TB display to mini-displayport, only to a TB source.
Confusing Mini DisplayPort with Thunderbolt
Note, apple still sells the mini-displayport version of the 27" display.

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