The post by Jennica Musselman will work. I typically use both encore and Final Cut, so I keep the installer package for both Qucktime 7.31 and 7.55 on my desktop so I can roll it back for encore and update it for Final Cut. It would be a whole lot easier if Adobe would just fix the problem, but the problem only exists on Mac. If you email them about this problem they will not respond. I’m curious to find out if they fixed it for CS4.