Last year we purchased a small server to become our domain controller so that we can take advantage of Sage Replicator and Mobile Reporting. I believe that we have done all of the steps and everything should be working.  However, I noticed the following when checking our user setup in Security Admin: all of our users have a domain\username listed but when I  select "Browse" next to that field it is blank.  As I am unable to log into Sage Construction Central, I have a suspicion this is the cause.  Does it have something to do with Active Directory?  It looks like when our IT company set up the domain controller they moved all the users to that server. Any guidance would be greatly appreciated.  Thanks!