DVI to S-Video TV out no longer working

I have a Macbook Pro 2.4ghz Core 2 Duo, bought mid 2007. Up until December last year I have been able to use an Apple DVI to TV adapter to display on a TV. For some unknown reason this no longer works. To find a solution I have tried plugging things in different orders, deleting preferences, creating a new user but nothing works. It may have happened after a Mac OS X Leopard update but I cannot be sure.
What I do know is:
- the DVI port still functions on an LCD, using a DVI to VGA adapter or just straight DVI.
I've read about failing video cards etc but I don't think any of these apply to my model. I believe it might actually be a software issue...
Has anyone had any success with recent versions of Leopard and connecting a TV?
Thanks.

turns out the dvi to s-video converter was kinda sorta broke, I had to jam the cable down into the s-video and rca plastic piece, I guess it wasnt making a perfect condition. Oh well works now.

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DVI to S-Video TV out no longer working

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