Apple cinema display 23" power problem.

Hey everyone I have a apple 23" cinema display 2006 or 1007 I'm not sure, that doesn't want to power up.
Heres the deal.. Apple says that in order to use the 23" cinema display you have to have a 90W or 150W power brick, I have the 90W power brick. I plug in the all the wires (power, usb, DVI, firewire) and then the monitor blinks: short, long, short, which according to apple means that the display isn't getting enough power. I did confirm that the power brick works I tried it on my other 20" cinema display and it works prefect.
Anyone know whats going on?
Thanks!

Check this discussion chain:
http://discussions.apple.com/thread.jspa?threadID=2086442&start=150&tstart=0

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