I have replaced the titles, to remove the long string of </div>s previously mentioned (which were the result of multiple edits). The behaviour is completely unchanged. I have also confirmed that the bug is reproducable in Sony eBook Library, as mentioned.
Bob - yes, clearly there is some "interaction" between the book and the PRS-600 that's causing the problem, but I can't see anything in this book that's any different to the others I've created, which all work fine. There's obviously something about it that the 600 doesn't like, but what? Windows Desktop ADE, the Opus, and apparently even the PRS-505 all display it correctly.
If anyone has any further thoughts on what the cause of this problem might be, they would be very welcome!
Last edited by HarryT; 10-14-2009 at 02:57 PM.