Today I took some videos for a school project, and then I wanted to edit them all and combine them with Windows Live Movie Maker. So I trimmed down some parts and then added some different background music for different parts. I also put in captions and wrote stuff. Everything worked out perfectly from there on. I then decided to want to finish it up tomorrow, so I saved the project. After that just to make sure I reopened the project and I got a huge problem now. The template is still there, but each video is blank, and when I play them its just a black screen. The captions work fine though, but the videos just don't play and so doesn't the audio. Here is a picture so you can see better of how it looks like.
http://imageshack.us/f/543/12953621.png/
http://imageshack.us/f/543/12953621.png/