CIFS / Login and Password

Hello.

I have started to use CIFS on a NW 6.5 server for the first time (going to
use XP Prof 64-Bit). I created a simple password, but cannot login to the
server from XP (32-Bit). I can see the server in the windows network
neighborhood, but cannot login (trying with the username without context and
the just set simple password). On the server console I see three CIFS
shares. Authentication is "Local".

Thanks for help
Michael