Movie will not export.

I have created a short animation of a rolling ball for my Ai class. When I go to export the movie the options box displays video options and sound options, neither of which give me any options. Then I select the file to save to and nothing happens, no movie. It renders and plays fine in Harmony but I need to submit this assignment. What is wrong?

Well that was strange I went back into the program and everything was working as it should.