Sounds like a simple set of "Next 20/Prev 20" links at the bottom would do the trick.

>When a thread exceeds 20 messages it it difficult to see it in its entirety. Before "See the entire thread from this message" was "fixed", I could repeatedly click that link to see the whole thread. Now, I'm forced to get a map, check the first 20 messages, view marked, get the map again check the next 20 messages, etc.
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>Please tell me there is an easier way! I'd sure like one. How are you navigating the large threads?