Originally Posted by crutledge
If a chapter ends in the middle of a page, the next chapter should not start until you move to the next page. If a chapter now ends in the middle of a page, the header of the next chapter appears immediately after on the same page.
With Mobipocket books you have to put in a manual pagebreak at the start of each chapter to make this happen. It certainly SHOULDN'T happen with any of the books that I've created - please let me know if it does, because it's a mistake on my part. In my Mobi books I always put a manual pagebreak at the start of a chapter.
A random thought: you're not using Book Designer to actually create
your MobiPocket books are you?