Black video, sound OK

When I add a quicktime move to an iWeb movie page template the movie video is black, but it plays the sound OK. The inspector gives the correct info on it.
I can copy the movie from the iWeb page to the clipboard and then paste it into QT player and it plays A and V just fine.
This is true for all quicktime movies on all kinds of movie templates.
iWeb 2.0 (8A336), QT 7.2, OS 10.4.10, dual G5, 2GHz.
Bug, or feature?

You'd have to find out what codecs are being used in the video file. Apparently the video one is not being supported by QuickTime but the audio portion is? If you go to QuickTime Player menu > movie inspector it should show what codecs are being used. If you want to post them back and what ext. is being used in the file, someone here may have further info.
Also as an example, DivX format is not supported by QuickTime for windows, yet it is with QT for Mac. And what you describe with black screen for video, but having audio, is exactly what I've seen in the past with in this particular format. I'm not saying with certainty the file you have is a DivX.
http://rovicorp.force.com/apex/Show_DivxB2C_Article?id=kA540000000CaUl&language= en_US&url=Can-I-use-QuickTime-to-playback-my-movies

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