Cinema display on HD cable box

J3 L U N T

Registered
Hi.

I have a 23" Cinema display and wanted to test it out on my Motorola HDTV cable box. When i plug the DVI cable into the port, my tv that is currently hooked up goes black (audio still audible) and my cinema display tries to turn on but stays black with a short-short-short sequence on the power light.

when i take it out my video is restored to the tv. BUT now my guide and menu fritzed out (happened before and had to replace the HD box with a new one).

so how do i get my cinema display to receive the video feed from the box? isnt it just plug and play? guess not.

TIA
mike.
 
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