I really want to connect my MacBook to our tv to play region 1 dvd's and videos I've bought in iTunes. At the Apple Store they sold me 3 cables, 1 Mini-DVI to DVI connector, 1 DVI to HDMI cable and a cable for sound. I've got these both hooked up to my tv but I can't get both sound and picture to show up. I have to choose between either the HDMI input or the AV (sound) input. Does anyone know how I can get them both?