I have a user that will work from out of the office on occasion over a VPN connection. This has worked fine until he was given a new laptop running Windows Vista Ultimate. Now he can no longer access the shared drives on our Windows 2003 server. All our XP clients that work remotely have no trouble, but when this Vista user logs in to the VPN and tries to access one of the shared drives, his AD account gets locked out and has to be reset. It works fine when the user is in the office on his Vista laptop, but over the VPN the user account is locked as soon as access to a Windows Server 2003 shared drive is attempted. Does anyone have any ideas? This is the only remote Vista user we have so far, but it won't be our last so I'm hoping someone has some insight. One other thing to note is that our Red Hat Linux share poses no problems for this users, but it is also managed outside of Active Directory. Anyone?