I have SharePoint 2007 running on a Windows Server 2003 vm. I can add users to the local server and to SharePoint, but when I, as a user, try to add other users to my Colleague's list in my MySite site, I get an error that the users are not in the User Profile Store. I looked up the issue and it seems that SharePoint gets this information from the nearest Domain Controller in the Domain. I have my 2003 Server set up as a stand alone. To try and fix this, I powered up a Windows 2000 Server that is a Domain Controller and running DNS. I pointed the 2003 server to look to the DC for DNS. Now here's the problem.The two servers can ping each other by IP but not host name. The DC *can* ping hosts by their name on the Internet so DNS must be working. It was midnight when I finally gave up on this last night. I woke up at 5:30 this morning after a restless night and opened IE on my VMware host machine (Windows XP SP 2) and was able to ping the 2003 server by name but couldn't go further because I had to get ready for work. Obviously, the current situation prevents me from adding the 2003 server to the 2000 server's domain. Any ideas would be appreciated. Thanks.