[Samba] NT domain and Samba domain

[Julien Silverston]

Hello eveyone,

My situation is :
I have NT4 sp6 domain working fine.
I have a Samba 3.0 working fine.

I've installed the bi-directional relation.

In the users'list of NT4 I can see the users and groups of the samba domain.
But I can't join in a Samba's group users from the NT4 domain.

So my users of the NT4 domain can't access to the shares of the samba 
domain.

Where can I start to looking for ?
I readed about winbind but I'm not in the situation of joining a samba 
server to NT4 domain. Both are domains different.

Any ideas anyone ?

Thanks in advance,

Julien silverston