Colin:
The simple answer is to not nest the navpoints, but to keep them all at the same level, even though they represent hierarchical content. Your profile says 'Iliad'; does the Iliad have the ability to show the hierarchy of a book somewhere in its UI?
On the Kindle, the only purpose of the navPoints is to specify where the destination points of a left click or right click of the 5-way controller will take you. I think this code is optimized for the Kindle.
Hope this helps.
G
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