Adobe Encore expert for quick easy help Authoring no-menu (just play video) DVD

For someone who knows encore well, this is quick easy money. I'll share my computer via teamviewer or skype and you can tell me what I'm doing wrong. I need to put some clips on DVD - no menu - it just should play. The problem is each chapter starts overlapping audio i.e. chapter 1 = fine, but chapter 2 plays the pic/video from chapter 2 AND the audio-only from chapter 1. Then chapter 3 does the same thing - plays video + audio from chapter 3 (good) AND the audio-only from chapter 1 (bad). I'm an encore rookie but am not seeing it. Tips? Or just answer the question direct if it's simple and I'll bonus a few bucks to the first person who helps me solve it. Thanks, RogerV