I found chat down when I logged in to SGO5 today, the IRC server was still up fine and The Forge chat channels were fine... I rebooted SGO5 to recreate the chat channels. I wonder if this is related and if the chat channels died (IRC relay crashed on the D2 servers) on the other servers you tried to login on while using this "McAfee privacy service"? Did you try to login to The Forge as while you had this service installed?