My dvd plays beautifully in encore and on a set-top player. The problem lies with when it is viewed on a computer. When watched on a computer some of the buttons take you to different places than they should. I have gone back into Encore to make sure my buttons are routed correctly, and they are. So... How do I make sure my navigation is consistent between set-top players and computers?
Iann - I'm just thinking out loud as I'm a newbie with Encore. Is it possible you have conflicting end actions for timelines if they're also in playlists? I don't know if there's an automatic override in this situation where one is selected over another.
Another thing to look into (since you're having different behavior between a pc and tv viewing) is this page, http://dvddemystified.com/dvdfaq.html . It has everything you want to know about dvd's.