Hi

I've been editing a project on Windows Movie Maker for the last couple of days and everything has been fine. Then, suddenly, the timeline/storyboard has gone blank (doesn't show any of my videos) - only an option to add videos. The preview screen shows a file of 11 minutes, but when I play the preview its also blank and I can't hear any audio either. I tried running a system restore and also repaired the Windows Essentials programme but no luck. Can anyone help please?