Quicktime-X still isn't playing videos as fluid as in 10.6.3 I used to be able to play 10-20 videos at the same time in real time! Now it suffers at around a few. Before i even could play 1080p animation-compressed videos with fluid playback and now it can't even play few frames straight. Argh. What did they do to 10.6.4???? Why must things get worse and not better???