it's supposed to start you on the part of the page that you left off at.
In a new thread, it starts at the first post, but in a thread you've already been too, it's supposed to go to the newest post after you've left the page. So it will move to post 36 if the last time you were there, there were only 35 posts.
It hasn't been working for me lately, I think it might be a site error or something, not really sure.









