I have created a movie with credits in movie maker.  When I play it in the preview, it looks fine, but when I save it, the credits cut off.  Roughly the last page of text does not appear in the scroll, but the movie is still playing.  So, instead of seeing the last part of the credits scroll by, all you see is an empty black screen for about 6 seconds until the movie ends.  I've tried saving the movie twice, and this happened both times.  Can anyone help me figure out what's going on here or how I can fix this?