samba - Oct 2010 - Windows 7 access keeps locking-up but others are fine?

Hi,


I'm using Samba on Solaris 10 with Winbind SSO.

When using Windows XP/2000/etc., it works fine.

But when I use Windows 7 to access the same Samba server, then a login window
pops up and my account gets locked up and I have to unlock it each time.

Is it something to do with SMB2 or some smb.conf configuration?

Any clues would be appreciated.

Thanks.


- Kevin