Stalker's CommuniGate Pro& SLES 9

Hello, I have installed Stalker's CommuniGate Pro software on a SLES 9 LPAR. When I tell CommuniGate Pro to authenticate using OS passwords it does so for local accounts. However, if I turn on LDAP users (using YaST), it will not authenticate OS users. LDAP users can sign onto the OS fine. Does anyone know what the fix for this is? Thanks, -- Charles Page Core Business Services - Your Business Technology Partner 203-918-3645