What does the button actually do when it has been clicked? There are two ways to play sound from a button click.
I'm guessing you used option 1. If you did that the audio would only play once, as the success caption would only play once. I'm thinking if you configure the Button to jump to the previous slide (one that is timed very brief, perhaps .1 seconds) the slide with the Button would then reset and the Caption would play again.
Hopefully this helps... Rick
Helpful and Handy Links
Thanks Rick, it does indeed. We are looking to do "flash card" style slides for learning a second language and so the ability to be able to click on the sound to listen to the word more than once is important. I will try the work around you suggested... thanks again!