On Linux Mint 11 64bit, I can launch the JLipSync.jar file with either the OpenJDK Java 6 runtime or the Sun Java 6 runtime and the program initially functions as expected. After scrubbing sound for a few seconds, however, the audio playback ceases. JLipSync doesn't crash overall; I can still scrub through the waveform, etc., but I no longer get any audio playback.