samba - Sep 2009 - Cannot access/write to shares, samba appears not to convert group names to SIDs

Hi All,

I cannot access/write to shares so I turned the logging level up to 3.
This is the error from the 'test' share while attempting to create a new
folder:
[2009/09/29 09:57:45, 3] lib/util_sid.c:string_to_sid(223)
  string_to_sid: Sid @domain users does not start with 'S-'.

I am using samba 3.0.36 on gentoo
smb.conf
   server string = Samba Server %v
   log level = 3
   log file = /var/log/samba/log.%m
   max log size = 50
   interfaces = lo eth0
   bind interfaces only = yes
   hosts allow = 10.4.1. 172.16.142. 127.
   hosts deny = 0.0.0.0/0
   encrypt passwords = yes
   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
   dns proxy = no
   security = ADS
   idmap uid = 10000-20000
   idmap gid = 10000-20000
   winbind enum users = yes
   winbind enum groups = yes
   template homedir = /home/%D/%U
   template shell = /bin/bash
   client use spnego = yes
   client ntlmv2 auth = yes
   winbind use default domain = yes
   restrict anonymous = 2
   domain master = no
   local master = no
   preferred master = no
   os level = 10
   disable netbios = no
#   dos charset = ASCII
#   unix charset = UTF8
#   display charset = UTF8
   preserve case = yes
   short preserve case = yes


#   printer admin = root, "@Domain Admins"
   printing = cups
   printcap name = cups
#   printcap = /etc/printcap
   load printers = yes
   default devmode = yes
[printers]
        comment = All Printers
        path = /var/spool/samba
        browseable = no
        guest ok = no
        writable = no
        printable = yes
#       admin users = root, @"Domain Admins", @"Printer
Admins",
@"Domain Power Users"
[print$]
#       comment = Printer Drivers
        path = /var/lib/samba/printers
        guest ok = no
        browseable = yes
#       read only = yes
        write list = @"domain admins"

[daily backups]
        comment = DGHYP Daily Backups
        path = /backup/set1
        valid users = @"domain admins"
        read only = Yes

[tech]
        comment = IT Files
        path = /backup/tech
        write list = @"domain admins"
        force create mode = 0770

[test]
        comment = test
        path = /backup/test
        write list = @"domain users", "@domain users",
"@domain admins",
@"domain admins"

Thanks,
Charlie Page