I have itunes 9.2.1 and quicktime 7.6.6. My videos are showing up with a black screen in Sony Vegas Pro 9 but the audio is still there. This is happening because sony vegas doesnt work well with QT 7.6.6. It does however work with QT 7.6.2. Problem is, Itunes 9.2.1 doesnt work with anything below QT 7.6.4. I cant downgrade my itunes because of various other problems. I've tried everything and I can't get Itunes and SV to work at the same time. Either Sv works or itunes works. Please help?