I've got a weird sound issue with Swords of Fury and I'm hoping for some direction on where to start looking. After Swords has been on for an hour or so, it starts playing music during attract mode. This is NOT the attract mode sound effects, which I have turned off. It will just randomly play about three seconds of gameplay music and then stop. It seems to happen every five minutes or so. The bigger issue is that once this starts happening, if you start a game, it plays the wrong music -- usually the multiball music. Has anyone ever had an issue like this before? Any suggestions on where I should start looking? Thanks in advance!