We have a domain admin account on our Windows 2008 network used for applications such as backups, antivirus and the like that doesn't have a password expiration. Well, this account keeps getting locked out and causing some obvious problems for us. I am trying to pinpoint the exact source of this problem but could use a little troubleshooting help. I think it is coming from a specific server, but just can't quite put my finger on the solution. Please let me know if there is any further information I can provide.