I have a PC runing various software. I have Quicktime loaded on this machine (the free version) and it allows me to use .mov files from my Nikon p1 in my Adobe Premier Elements. At some point, the quicktime stopped working. there is some software conflict. I can not upgrade it (the installer fails), i cannot, remove it (the uninstaller fails), and Adobe Premier won't startup (I can see it trying to load QT, and then it dies. How can I fix this problem?