Movie maker won't play my videos that were working previously and now has a black screen, I NEED HELP!! All of my drivers are Updated, I also tried converting the files, nothing is working.  Is there any way I can save the project into a video file because at this moment when I try to it says it can't save because it is missing files.   I really don't want to spend another 10 hours remaking this video.  There HAS TO BE A FIX!!!!