Samba 2.2.4 Winbind question on Solaris

[Andrew Blatt]

All,

I have compiled Samba 2.2.4 with --with-winbind and --with-pam.. I modified
/etc/nsswitch.conf to contain winbind and am able to do a getent passwd (which
will then list unix and windows accounts):

(snip)
MSUNIX+ablatt:x,latt:10000:10000::/home/ablatt:/bin/bash
(snip)

I see that I am trusted in the domain:
./wbinfo -t
Secret is good

And I have followed the Solaris-Winbind-Howto.txt doc. and have updated
/etc/pam.conf:
(snip)
rsh     auth required   /usr/lib/security/pam_winbind.so try_first_pass
(snip)

But when I try and login, I get an error message in /var/adm/messages:
	May 29 08:52:32 dsas-sun2 pam_winbind[2256]: [ID 310996 auth.error] Could not
retrive user's password

Could anybody assist me with this issue ? It would be greatly appreciated.