I upgraded to QT 7.0.3 in a stupid mental state to be able to watch some video i Itunes new software. Now my cinewave QT wont play and FCP will report errors of "unknonw files" after capturing. I try to revert to 6.5.2 using the reinstallers provided by apple in their site that instruct you to revert to 701 first and then to 652. But when you run the reinstaller "702 or later to 701" it says that you can not install it this Mac because it doesn't have the appropiate version of QT. How can I ever revert this mistake?