For some reason, I am unable to pull audio files for my Movie Maker Projects. I used to be able to, but now it won't recognize any audio file formats. What do I need to do? Without audio, Movie maker is unusable to me. I made several projects over the year with no problem. Sometimes I had to convert a MPEG-4 file, but once I did, everything was fine. What do I need to do??? I have Windows 7 and store my music in Itunes.