Several machines on my network are receiving the error "Security log is full, you must log on as the administrator to fix this" when the logon screen pops up. I don't know what is causing this. I thought it was just the machine, but now it has happened to over 20 machines. All of them are XP machines. I have been manually clearing the logs on each machine, but I've come to the conclusion that it must be a server problem. We are running windows server 2003 with roaming profiles and group policies. Any help would be appreciated.