I got a mail from a client who was having problems with Site Authentication.
His problem was that after recent setup of a SharePoint installation he was having problems with Site User Authentication. So whenever a signed in user tries to access the Team site/ Collaboration then he/she gets a prompt to login to the sharepoint site.
His intial plan was that users will be authenticated with thier Windows logon.
The simple solution was to add the intranet site to the Local Intranet Settings.
1. Open IE, click Tools, Internet Options, Security, Local Intranet, Sites, Advanced
2. Type in the local intranet address and press Add.
Voila! Your sites would load as planned