I deleated most of my project, all slides shows with narration, because iMovie freezes or the ball spins forever when ever I try to do any thing from slide the slide bar to selecting a project. I have to restart over and over just to deleate a few projects. I had the same difficulty selecting projects to share in iTunes. I thought perhaps deleating projects would make things work better but NOT so far. I repaired permissions but that is all I know to do.