Cant Export Movie to Quicktime

I’m unable to export my animation to quicktime. Every time i click “ok” on the export to quicktime box, it closes out and doesn’t export the movie.It doesn’t even begin. I also can’t do anything with the “video options” in the same menu, when i click on that it looks like a window opens up and immediately closes out before i even have the chance to LOOK at it. Help??? I just wanna export my movie.

You first need to make sure that you have some version
of the Quicktime player installed. The video options are
not editable because they come from the settings of your
TBS project.