When I try to export a movie I made in imovie the part where I have used the scrolling credit effects comes out as a white screen..... I have tried rendering in various formats and sizes/settings . The only time it does not render white is if I uses the standard .mov setting at "tiny". I have tried the same set of credits on the same set of film in a different project and had no problems. I have tried deleting and reloading the credit effect with no luck. I would redo the movie.. but it tok about 6 hours to put together and I would rather not.... Does anyone have any idea what is happening? Googling the problem brought up one person with the same problem but no answer..... I am open to any suggestions. Thanks!