[Samba] os x to samba authentication failure on share level

[TN]

I'm a newbie to this list, as I've hit a problem I cannot solve by 
googling around.

I have a debian server which is setup for share level security, most of 
which are public. A couple of the shares are using user= to secure to 
only certain users, and users connect from xp/vista & os x
I recently upgraded to samba 3.0.28a and all of a sudden the os x users 
are failing to authenticate to those secured shares - the non secured 
shares they can access fine. XP & Vista users can authenticate fine.
If I change to user level security, then os x users can authenticate to 
those shares, but of course the other non-secured shares are 
inaccessible since they have no users to authenticate with.

The failure occurs for both tiger & leopard users.
What's changed ?


Another query - if I make samba only allow ntlmv2 authentication, does 
this deny the use of share level security ?

cheers

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