Connecting to any TV always letterboxed - why?

It seems that when I connect to a TV set, whether it's through the DVI (My sony TV has a DVI input), s-video, or RCA, the image is alway letterboxed, so stuff that should play full screen has black bars on the top and sides, making the image smaller. Letterboxed video is double letterboxed, making it even smaller. This happens on any TV set. My boss's 15" Powerbook does not do this.
Is this a common 12" PB problem? I've fooled around with all the external monitor settings, and nothing seems to fix it. It's a little annoying, as I like to play alot of things off the computer, and I don't have the budget for a Mac Mini right now.

Kenneth - I think we have the same problem but I don't think Emperor understands it. At least for me my TV is 16:9 and I would like to be able to fill up the screen without stretching the image. The TV is 1366 X 768 but that choice is not available when detecting and setting up the "second display". (Nor anything in that exact ratio). No matter what I pick there are reversed letterbox lines on the sides of the TV (unless I stretch the image to fill the TV with the remote).
So like Kenneth when I watch a "letterboxed" movie, instead of filling the screen it gets letterboxed within the reverse letterbox and is pretty little. Get it? Can the 12 inch powerbook just not support a 16:9 monitor? Looks like the new minis can (based on photos I have seen of it driving a TV).
Thanks!

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~~~~~~~~~~~~~~~~~~~~~~~~~
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Message was edited by: Wallybally

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Connecting to any TV always letterboxed - why?

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