Please tell me someone else knows what to do about this. I don't believe it is a SharePoint issue any longer, but I don't know how to resolve this. I have MOSS 2007 installed on one box with SQL Server on the same one. I use AD authentication, and I
have allowed all authenticated users to access this portal. Upon hitting the site, 99% of the people have no issues. I have 4 people who get the error, "The user does not exist or is not
unique." Anyone have a clue as to how I figure out what is really going on? One of these guys uses a thin-client workstation with XP and IE 7. One uses a regular desktop XP and
IE 6. The other two use regular desktops with Vista and IE 7. I have checked the AD, and everyone looks to be set up properly. I just built the site, so there are no workflows. We didn't migrate from another SharePoint or anything. It is just a quick
load and launch really.