After a couple of days assembling a video with still images, videos, music and captioning, it is now not working right. I can open the file but within about 30 seconds, about five minutes of the presentation just disappears. The music and captions are in the wrong places and when I go to play it, I'll have music with no pictures or pictures with no music. This happened with an earlier presentation but when I went ahead and saved it as a movie, everything came out correctly. The problem this time is that I have not completed this presentation. Any ideas? I'm using this through Windows Vista.