please do NOT clog up this thread by saying it's working fine.
When I and others open a thread it opens around the middle of the page OR it opens at midpoint of pagination. Occasionally at last post or first post.
This happens even with new UNREAD threads - and it's not locating at the last unread if some posts have been read. It's either random or locating at midpoint.
Might be a Firefox integration bug (I use Firefox and one or two other sufferers seem to be FF user5s.)
Some users are reporting the function is OK as open at "last unread."
See this post for good summary of reports so far.