Flash Settings -> Privacy Dialog Auto-Appearing. Why?

I have a rather simple swf running in a html page that doesn't have anything to do with a camera or microphone, yet when soime users run it from their machine they get a "Macromedia Flash Player Settings / Privacy" dialog box appearing instead of the movie.

Is there something I can do to the fla/swf to keep this from appearing?

Thanks! :cool:

So I haven't figured out why it's appearing, but:

unloadMovieNum(2130706430);

will make it not appear. :)