I think I've deleted my quicktime player on my iMac. so, I have downloaded quicktime player from Apple.com and tried to install quicktime player 7. BUT it says i can't install quicktime player 7 because I already have quicktime X on my computer. I can't find it at all on my computer. I have tried to update for my all apps but it says there's nothing to update. How can I re-install my quicktime or even find it? plz help me!