I am using Windows Movie Maker since long time on Windows XP without any problems. Recently I upgraded the same to Windows Vista. Now there is no problem importing audio/ video files in Movie Maker but when I play the project, I cannot see anything in the preview pane. Preview pane remains black and blank. I can only hear the audio but no video. I tried starting new projects with new videos as well but yet the Preview Pane remains black. Can anyone please provide me some help on the same? Many Thanks.