Empty clip/ button problem

very odd problem -

I have a button inside a movie clip that i am trying to get to load an swf into an empty movie clip on my main stage. It does load in the movie into the empty clip but my movie with the button in it dissapears when it loads in. The actionscript on my button inside the movie clip is this:

on (press) {
_root.loadMovie(“galoneswfs/bl1.swf”, “container”);
}

any ideas whey everything else should dissapear?

thank you.