attachMovie question

I have a mc_button that has an attachmovie (test) onRelease function on it.

on (press) {
	this.attachMovie("test", "window", 1);
	window._x = 200;
	window._y = 100;
} {

The problem is the “test” mc has a scroll bar in it with thumbnails and it is interacting with the mc_button. How do I fix it so they work independently of each other while still have mc_button call the test movie clip.

Here’s a sample of what’s happening. Any help would be great. Thanks.