The latest snapshot (98) no longer relies on the JMF for playback. We're now using jLayer instead for all systems. Based on the error messages I was receiving about getting Soundboard to work on some Ubuntu systems, this should resolve most issues getting Soundboard to start. Since it's been so long since the last release, I'm going to prepare another one as soon as I've had a chance to test it a little bit more and revise some of the documentation, which has not kept pace with code updates. Stay tuned.