I just got a TiBook 550 and am trying to watch a DVD on my TV using S-Video. The Desktop shows up on the TV but when i start the DVD i get audio (through the book) but no video on the TV. I tried a MPEG movie that i had on my hard drive , and it worked fine. Any ideas on why the dvd wont show up? And what i need to do to fix it? Thanks OtisB.