This may be related to my previous message about security. We just migrated from NDS7 to eDir 7.8.3 on our 5.1 (SP8) servers in preperation for adding a 6.5 server to the tree. After updating, all of the computers running version 4.83 of the netware client could log in. All of the computers running 4.91 (sp4) of the netware client were unable to log in (they could log in prior to the update). We are just looking to do simple NDS type logins.