[Samba] Group not updating - Active Directory Auth with Winbind - Is there a way to make it update?

[KJS]

Hi Guys,

I have a machine setup to auth over AD with winbind and it's working 
fine. However, I just added a user to a group on my Windows box in AD, 
when I am logged into Linux and i id the user it does not show the group 
I just added the user to.

Is there a way of forcing it to update? I have tried restarting winbind 
and samba.

Many Thanks