I have been using Live Movie Maker 2012 for months without a problem, but all of a sudden my created mp4 video clips have audio that is out of sync with the video. The source video is just fine, but the saved video is not. I usually use AVI files created from ripping DVDs as my source. Anybody else having problems? I tried saving as a WMV and that worked. It appears the MP4 files have the problem.