I've just purchased CS4, a little messing around but unfortunately I get no display preview movie.
Although I can with the mouse go over timeline and see the result, but can simply start running the sequence by "space bar" or start by "return" does not work. Also, the manual start button press in the preview window does not work.
Did I accidentally selected as default, any - I mean play around the first few minutes it would have worked.
Thanks for your help Don
PS I usually still working with CS2 (and with Premiere since 1997), because I had such a problem even before.