i reisntalled the domain controller, but the users changed. since my workstation belongs to the domain, my domain user also changed (´cause i had to rename the domain). the problem is not on the server, it´s working ok. the problem is in my workstation, because i copied the profile that was stored in C:\\Users\Userx to the new C:\\Users\Userx_new. i did it because i wanted to keep all the configurations i had in the old user, and when i log in with the new SUer, there's the pop-up window with the message. i close it and everything is ok, but's very anoying.