This._lockroot = true; issue

i’m having a problem keeping the speed (frames per second)of the swf file once loaded into the main movie (container). I am able to load the movie, but i can’t keep the speed of the swf file. i tried using this._lockroot = true; both in the swf and in the container of the main movie. does anyone know how i can keep the speed of the swf movie because otherwise i’m gonna have to code the img effect and that would be difficult. the swf file once loaded sets itself to the main movie speed.please help me!!