I tried downloading Windows Movie Maker to my laptop. it's a dell with windows 8 on it. I don't know if windows movie maker was already included? I tried to use it and while it did let me import and add pictures to my storyboard, it will not play them. The screen is black. I read previous posts that said to DL windows essentials, which I did. I also tried running fix it and no problems were detected. What is wrong?