I have the same problem as swascom, the time limits that I have set for my son have suddenly stopped working. He no longer gets a 15 minute warning and is no longer being automatically logged off when his time is up. Until a few days ago the system was working fine, no settings have been changed, so cannot figure out what is going wrong. My son does not know any of our passwords and can only access the computer once I have logged him in to his account. Help please, very frustrating.