samba - Jul 2009 - share folder accessible for domain group

Hi :)

To have a shared folder to be accesible only by an AD group what should I do?

I installed, samba, put it in domain.

I get good ansers at:

wbinfo -u
wbinfo -g

getent..

but i can not authenticate using an AD group.

any advices?

Thank you:)

Gabi