There does seem to still be some hiccups especially on higher volume Worlds. Ideally when you hit logout or shutdown a request is sent to the server to terminate your session. For any number of reasons that request never makes it to its destination and so your session is left live on the server side. Typically there is a set timeout period for a session that suddenly no longer has a clientside connection but for some reason that timeout isn't being triggered. Maybe connection status is saved in more than once place...I'm not sure. This game does act like FFXI. It refuses to let you log on if you're techinically still logged in. I think it's an anti-hacking measure to someone doesn't snag your account and kick you from the game.