ActionScript 2.0 :: Movie Loops Even With Stop Action?

Im using flash cs4 pro, designing a website. I put a stop action in the last frame of scene 1 (main page) in the main time line, and that works fine. We have a button in scene 1 that brings you to scene 2 (sub-page), this scene also has a stop function in the last frame because we want it to stop, until the user hits a button to bring them to the desired scene. Now, the stop action in scene 2 seems to work, for about 6 seconds, then it goes right back to scene 1, and LOOPS! through scene 1 and 2 repeatedly, as if the stop function on scene 1 was never there.The button that brings you to scene 2 has the following action

Code:
on (release) {
gotoAndPlay("2","1");
}

the last frame of scene 2 has only a stop action, as does the last frame of scene 1. Why does it loop even with a stop action there?