Fullscreen+noScale doesn't work. Help please

Hi,
I have a movie 500X400. I create two emptyMovieClip and attach a line from the library by attachMovie(). Then I increase the _width of these lines to get a line drawing effect. I do not begin from 0 to 500 but maybe from -10 to 510 and I have these commands:
[AS]
fscommand(“fullscreen”, true);
fscommand(“allowscale”, “false”);
[/AS]
to make a fullscree, noScale projector. But on the screen I can still see those around whole my stage and my movie in the center of screen is bigger than 500X400. I’m using SWF kit.