PopUp window

[amin@]

Hi
When I try to see one site in my server , I receive PopUp window for user and password!
Also ,I Run plesk reconfigurator. But my problem has not solved yet

 

[thaidreamhost]

me too

 

[AbsolutelyFreeW]

problem when this happens is usually permissions, firewalls, and/or http headers. i can help if you like