I'm having some troubles here. Youtube videos work fine. But if I try to watch Apple tutorial videos, they won't run on Safari (5.0.5). They run with no problem on Firefox. I've uninstalled Divx, Perian, Flip4Mac but it still won't work. All I get is the audio and the spinning fan, but no image. Before uninstalling DivX I hadn't even that - all I was getting was some error message (DivX couldn't show the video, or something like that). If I switch Safari to open in 32bit mode, I can get both audio and video, but it's weird: it plays like a YouTube video, with the controls on the bottom (same Youtube format) AND the quicktime-style controls a little bit higher, still on the bottom, BOTH not accessible (picture). What shall I do?