how to use quicktime effects in Jitter?

    May 17 2006 | 9:57 pm
    Why can't I use QuickTime effects with Jit.qt.effect object? When I clicked "dialog" message box, the "select effect" dialog popped up. However, when i chose an effect option and clicked "ok", a QuickTime dialog appeared:
    "Quick Time is missing software required to perform this operation. Unfortunately, it is not available on the QuickTime server."
    by the way, I am using win XP and Quicktime 6.
    Thanks a lot!