Hi I opened another thread in the MacBook Air forum because I figured it must be something MacBook Air specific. Turns out, it's not. I'm trying to playback some 720p content with my Rev A MacBook (1.8 Ghz, no ssd). What I found out: iTunes playback: stutter, cpu temps above 80 degress cel., cpu% 80 - 1XX Quicktime: no stutter what so ever, cpu temps slightly over 70, cpu% 40-50 And there is my problem. This high temps cause the playback to stutter. Does somebody have an idea, on how to fix this? Thank u!