13" macbook pro can't detect tv

So once again I am wondering if anyone can offer a solution for this problem; my 13'' macbook pro will not detect any tv that it is connected to. I have tried both a 42'' Vizio and a 40" Samsung. I got it to connect two times, and then nothing. Help me Obi Wan Kanobi, your my only hope...

Sorry that I didn't update after my trip to the Apple Store.
They fixed it, but it was weird. The booted to an external USB drive to a different install of 10.5. From there, they were able to set the drive region to 1 (I'm in America), and the choices allowed 2,3,4, but no others. That was strange in and of itself.
After they set the region, it must have updated the drive firmware, because when we rebooted into my install, the DVD played perfectly.
I'm not sure why this happened, or what flakiness is happening in the DVD regions with regard to this new MBP, but it works now.
Perhaps you can find a colleague with a Mac with firewire and you can use it to boot into Target Disk Mode and use their OSX install to help configure your DVD region? Booting to USB media is also possible. I'm just trying to brainstorm some suggestions to try that might keep you from having to do a fresh reinstall.

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13" macbook pro can't detect tv

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