I have a MacBook C2D with 2,16GHz and Snow Leopard installed since 1 1/2 weeks. I always used 1280x720 with Tiger and Leopard on my Panasonic 37'' FullHD-LCD, so the macbook don't need to upscale the 720p video to 1080p for the TV. 1080p mkv-files don't play properly on my MacBook, so i don't need 1...