Unloading an External SWF

I am making a frame work that holds external swfs and cycles through them when a button is clicked. The problem is each external swf has a sound object. How can I unload the video and keep the event sound from continuing to play. They visual elements go away but the sound continues to play. Please help!!

depends on how you're loading it, but the simple answer is:

Yeah, I've tried that. I dont have the code with me to post but I can get it. I'll explain. I load the the external mp3 into a sound swf. The sound swf is then called by the individual screen swf. The screen swf is then loaded into the framework. I do it this way because all the information on the screen is loaded dynamically with XML. Why exactly does the audio continue to play when the movie has been unloaded?