When using Windows Live Movie Maker, When I import clips they are just green on Windows 8

I have been trying to edit a video me and my friends made and when I import the clips into windows live movie maker (MOV File) the clips are just a plain green. I still get audio but no picture. I have ran "dxdiag" and "Microsoft FixIt" but nothing was found that was wrong. I know that someimes .MOV files don't work as well with windows live movie maker and I have tried to convert them to other file formats such as WMV but I keep getting the same result. Sometimes it will say some of my footage is corrupted or missing even though its right there on my desktop. If anyone could please help that would be great.