Hello everyone, I am trying to watch a HD movie in 1080p on my Macbook Pro. Parts of my video will lag behind in QuickTime X, So i looked at the CPU history to see it at 100% out of 200%. So i tried another decoder (iTunes) and saw that my CPU usage went down to 20% with no lag and a Definition boost! I have no clue why iTunes is using GPU decoding while QuickTime X isn't. Anyone have a clue? Thanks! QuickTime Version: QuickTime X iTunes Version: iTunes 10.1 Mac OS X Version: 10.6.5 x86_64 Video Format: MPEG-4 movie, AAC for Audio and H.265 for Video Thanks!