Question : IIS Issue - SBS 2003

Hi, I am having an issue, I have setup 2 internal websites in IIS on SBS 2003 Server.
I have them both running from the same IP one is running as though it is the company web and the other one I gave a Host Header and registered it in DNS Server by adding a HOST (A) entry listing the Host Header.

What my problem is that when I type the Host Header name in a web browser it takes me to the website fine, however when I enter the full path eg. website.abc.local it always comes up asking me to enter a Username and password.
How can I make it so it doesnt ask for a username and password ?

Thank you

Answer : IIS Issue - SBS 2003

Host headers must list the FULL names of all names you want to respond.  Did you do that?

For example, if you want website and website.abc.local, then BOTH of those must be listed as host headers for that site.