Sticky buttons sometimes?

I’m working on a flash based website. Theres a number of buttons that slide out from a navigate button when it is clicked. When you click a slide out button all buttons slide back and are hidden again behind the navigate button. at the same time a new movie is loaded on level_2.

heres the code for the slide out buttons:

on (press) {
loadMovieNum(“wwd.swf”, 2);
on (rollOver) {
loadMovieNum(“navigatewwd.swf”, 1);
on (rollOut) {
loadMovieNum(“infocenter.swf”, 1);

Now this works for the most part but sometimes the movie is loaded on level_2 but the button does not advance to frame 15 for the close transition.

any ideas?