Login Dialog

Hi folks

I have installed Sharepoint onto a domain server. It will always be accessed from within the domain (i.e. it will not be on the internet.).

1. When a user browses to the site (in internet explorer) they are presented with a login box (saying "Connect to [Servername]"). Is there any way that I can get rid of this I would rather that the users didn't have to log in. I hoped their credentials would be handled automatically since they are on the domain.

2. I have an asp.net 2.0 site which the Sharepoint site has links to. It is on the same server but published on a different port. When a user clicks on a link for this site they are also presented with another login dialog. How can I get rid of this (i.e. can't I just have a single login for the server)

Many thanks for any replies!

Will