With the loss of the clear indication of what I have viewed, I am trying to figure out how to best use the mechanisms this board supports... So, the "You last visited" calculation seems to be based on some maximum time of inactivity... like if you are inactive (don't load a new Fchat page) for longer than X minutes, then the next time you access an Fchat page, it updates the "You last visited" time. Is that right? If so, what's X? (How long do you have to be inactive to cause the update?) Thus, at all times, it would seem to be keeping track of two times: the time that you last "went online" and the time that you previously "went online". (Where "went online" means you accessed a Fchat page after X minutes of inactivity.) True? And the new posts are computed as any posts made after you "previously went online". True? OR, is it keeping track of a third time: the time when you last went offline (the time of the last Fchat page load before that X minutes of inactivity). And the new posts are the posts made after the last time when you went offline. True? Former or latter? Or is it yet something else???