We have a trust set up between our domain and our parent companies domain. We are using Windows Server 2003 in 2003 functional level. They are using Windows 2000, in windows 2000 functional level. We are using conditional forwards to resolve addresses in their domain, they have just recently setup a secondary zone in their domain to resolve names in ours. The problem seems to be however, that we are still reliant on LMHosts to maintain the trust for some reason. Im certain it has something to do with DNS, but i dont quite understand why the trust breaks when I remove the lmhosts entries for their domain. We are not blocking traffic from or to any of the domain controllers. Anybody have any idea where I might be able to look to try and troubleshoot this?