samba - Feb 2004 - Should adding trusted user into groups work?

Hello

I have set up winbind in my samba-3.0.2 according to Samba HOWTO and
tried to add an user from trusted domain into local group.

The local group is samba, the trusted domain is NT4, samba trusts NT4.

It doesn't work. I tried to do it from usrmgr.exe and it says
"The user name could not be found".

Is this supposed to work?

Cl<