FLV keeps playing after stop called

I have four FLV’s (chapters) on individual frames. When you click on a chapter button, you skip to the selected movie, and it stops the currently playing movie.

currentVideo.stop();

This works most of the time. When I click on 3 different chapter buttons in quick succession, I end up with one movie playing, but the sound for 3 movies playing over the top.

I’ve noticed that it’s ability to stop audio playback is less responsive when the flash is viewed online, as opposed to off the drive.

Am I missing something simple? I’ve tried to navigate to a blank keyframe before proceeding to the next video, but that was a stab in the dark that didn’t work.

Any help would be greatly appreciated.