SimpleButton containing MovieClip with multiple frames

Hello,

I have a SimpleButton that contains a different MovieClip for the Up, Over, and Down states. These MovieClips all have 10 frames and corresponding frame labels. I can use gotoAndStop on the MovieClip in the Up state, but that only works until I hover over the button. Adding stop() commands in the timeline seems to give unpredictable results. Is there a way to get a SimpleButton working with the Up and Over states with a multi-frame MovieClip?