How do I add a scrolling text block in iDVD '08? I have a ~1 page document about the history of the band (I'm making a DVD of videos/pics for the guys in the band) but I can't figure out how to have the text scroll from the bottom to the top of the screen (like movie credits). If it were over the standard theme background, that would be fine but when I tried adding a text block, I wasn't able to animate it to get the scrolling effect I'd like.