Can anyone help me figure out how to make the Browser or Window that launches my .swf file fit exactly the size of the Flash Movie's dimensions?

My movie is 800x550 yet when launched it in a browser there is extra space around it which shows the elements that are outside the border of the movie which I later tween onto the stage.

In short, how do I constrain the Browser Window to fit the dimension of the Flash movie?

Thanks,
Tony