Hi My PC just broke down, so I decided to use my MacBook Air (1st gen, no ssd) as my primary machine until I can afford an iMac. I've always worked with 2 monitors, because I like to watch tv shows etc. while I'm doing other stuff on the 2nd lcd. Well, now that I'm all down here I tried to watch a high definition tv show (bought on iTunes) and it stuttered every few seconds?!? I'm watching this stuff on my da*n 1Ghz celeron Apple TV and my 1.8 GhZ duo can't handle it? There has to be a solution for this? Thank you very much! P.S. I'm even working on Snow Leopard... /edit: Okay got a little update. When I'm using the ethernet cable to connect my MacBook with my AirPort Extreme it doesn't stutter anymore, but there is still the "why" to answer. My AppleTV is also connect via WiFi, and doesn't sit right next to it?! /edit2: Okay was wrong about that. Still stutters. I've been checking the CPU% with Activity Monitor and QuickTime sometimes goes over 100.