All of a sudden I get this error when I try to manage BM from NWAdmin.

This snap-in administers only Novell BorderManager 3.0. An earlier
version of BorderManager has been detected on this server. Please
use the earlier version of the snap-in to manage this server.

I have installed a local copy of NWAdmin, reinstalled all BM snapins,but I keep getting this error.

Kind regards,