I refer to a post

http://answers.microsoft.com/en-us/windowslive/forum/moviemaker-av/windows-7-movie-maker-has-black-screen-but-has/bc10a66e-2e16-4866-8e3e-b3371b71e9ee?page=6

Has Microsoft admitted yet that there is actually a problem with movie maker? I am having the exact same problem and have tried ALL of the fixes suggested and dont want to waste hours going around in circles without a resolution. Please don't repeat what has already been said by others Microsoft.