Nested Movieclip disappearing

Hi,

I’m very new to flash, so I apologise if this is a very simple thing to fix.

I have the main swf where there is an animated logo and three empty movieclips. On of the movieclips is used to display dynamic text, while the other displays a menu (menu) that determines what is loaded in the one empty movieclip (music) left.

The problem is that when the menu movieclip loads a swf into music, menu disappears.

code (it may seem familiar, as i am playing around with various bits from tutorials on the site)

on (release) {

gotoAndStop(1);
_root.music.loadMovie("sound.swf");
list = "Excuse Me Sir";

}

Any ideas how I can keep menu being displayed? Thanks in advance.