This is a "fresh" install of Windows Media Center.
I did it directly from the recovery DVD, system is up to date.
I was trying to change the way users log in to the computer and I get a message box.
Title: User Accounts
Message: The specified module could not be found.
With an ok button.
I get the same message if I click on the users main window on the links, User Accounts, User account types and Switching types.
Any idea is welcome.