Dell Latitude C640, port replicator dock, NWare client 4.83 SP1. Unit is plugged into a Nortel 350-24T switch. More times than not, the user is getting a "can't see tree" error when booting. User has to login 'workstation only' then launch the NWare login in order to attach to the Novell resources. I'm thinking it may possibly be a communication issue between the 3Com 3C920 NIC (used in both the laptop itself anad the dock). This appears to be consistent with multiple C640 units. Does anyone have any ideas???