I have had precisely these problems and have had to buy a copy of Movie studio in order to be able to finish projects. Why do so many people enthuse about Pro 8 when it is so bug-laden, in fact virtually unusable.
I have also found a problem with Movie Studio. After project is rendered and burned to disc there are often green flashes between scenes where there should be a direct cut. The green frames do not show up in the timeline. Any ideas gratefully received.
Mike,
London