I've had Imovie 09 for about 2 months and it has worked just fine until now. When it starts up, the screen partally comes open, but is frozen. Can't scroll on my project or events, can't do anything. When I push the space button, my project plays in the viewer but doesn't move on the project timeline. I've tried going back thru time machine but it still doesn't work. Also I reinstalled the program, didn't work. Any help would be appreciated as this has been extremely frustrating. Tks.