Is this working as it's supposed to? When I click the "go to first unread" button, it goes to the last post that I haven't read, just as expected. Sometimes the "Posts below this point are new since your last visit" marker appears several posts later. I realize why that is happening... I'm just not sure if it provides any useful information. It doesn't really mark the first unread post, just the first post since the last time you logged in.