Some applications replace the version of QuickTime installed by Mac OS 9 with an earlier version. If this occurs, you need to re-install QuickTime by selecting "Add/Replace" in the Mac OS Installer, and then doing a customized installation. For additional help, search on "adding or removing system software."
Note: The latest version of QuickTime can be downloaded from the QuickTime Web site at: http://www.apple.com/quicktime/ .