Hello. (sorry for my poor english)

when i'm trying to mount a Novell NFS volume (Netware 6.0 SP5) with my Suse 9.1 Pro, i've receive this message from mount command : "mount : RPC : Program Not Registered. ".
This same volume can be mount with no probleme with MDK 9.1, 9.2, 10.0, RedHat 9.0...

thanks for help!