We currently have a Win 2008 Standard Server setup for our websites and it's part of a domain and our AD for authentication. We have a few websites setup to only allow internal & authenticated people to access them. So in IIS7 for each of these websites under "Authentication" we have "Anonymous" disabled and "Basic Auth..." and "Win Auth..." enabled. The problem is when we try to access these websites on a PC using IE7 the browser is not able to login unless I enter my user name like "MyDomain\UserName" and my password. If I try to enter just "UserName" and password I get a "401 - Unauthorized: Access is denied due to invalid credentials."? But in FireFox it works fine just entering "UserName" and password no domain is required in the user name. Does anyone know how to resolve this? Any help is appreciated.