[Samba] NIS authentication question

[lisanskaya_asya at emc.com]

Hi,

I have a samba (Version 3.0.25a) setup on our solaris box.  I have been
upgrading it from a previous older version of samba...

I can't get authentication to work....

Here is my smb.conf file:

[global]
        server string = foil samba server
        log file = /usr/local/samba/var/log.%m
        max log size = 50
        hosts allow = 127.0.0.1, 198.49.114., 216.73.62., 10., 172.16.,
128.222.

[tmp]
        comment = Temporary file space
        path = /tmp
        read only = No
        guest ok = Yes

I've tried many different options....

When I try to mount to the server..it keeps asking me for a password.  I
know for sure that the password I'm typing is correct.  /tmp directory
exists as well.

For some reason, our private directory has two files (passwd db).  In
our older version samba servers...private directory is empty.  I've
tried removing the files, but they keep reappearing.

How do I tell it to authentication using NIS?  Our nsswitch.conf file
has the following:

passwd:     files nis

No shadow line.

What could be the problem?

Thank you!
Asya