Hi Hans-Martin, I had the same problem on my XP machine. Only the installation of the newest Quicktime-player from the Apple-server brought the movie on my screen.

Forgive me, but doesn't that mean you also have to install (and the uninstall if you don't want it) iTunes?

I've been using a non-Apple QT DLL (haven't tried it on this) because: a) I really don't appreciate being made to install software I don't want; b) I hate the nag screen that comes up when you try to view a QT movie.