I've been working on an imovie project for 3 weeks now and all the sudden, when I open imovie, nothing shows in the preview pane. When I go over the gray preview box, I can see the clip play when I move my cursor "along the clip". I have to click the drop down menus or a drag a window on top of the preview pane for the clips to show. Also although I can see all events, I can't click on any of them. I've tried copying the project but I guess its corrupt or something. Any ideas?