Right, here's how the Who's Online function works. Whenever a person opens a page, it's recorded by the board. The board is in contact with their computer, giving them that information. However, once they've loaded the page, the board is no longer in contact with them until they once again load a page or otherwise interact with the server. If the board literally only showed poeple online who were at that moment accessing a page, it would be a bit like roulette. There'd be no way to be sure that the members would be caught at that time. They might be reading a thread or making a post. So, what the Who's Online function actually displays are those who've interacted with the server in the last X minutes.