Drozes I made a user with none of the permissions checked.Once you login - there is not button to logout.I tested this on Chrome, Windows 7. No errors in firebug.I ended up just going to #/login to change my user.
Repetier Ok, found the reason. Test was if user has any permission. Never thought about that combination, but that makes sense if you have someone just monitoring your printer. Will work in next update.