Same here. I'm on a PB G4 1.33 Ghz machine, so it takes a while to generate the previews for movie files ... less so for pictures. This was expected the first time, but what I don't understand is why it has to keep doing this repeatedly? Once the preview is generated it should be much faster to just load them after that. I'm about to just go back to icon view for movie files since the feature is pretty much unusable on that type of media for me.
OAW