[Samba] Group mapping question

Greetings,

I am hopeful that someone can assist me with what I am certain is a
simple misconfiguration. I am running a smb server on RHEL5.2, the
version of samba is 3.2.1. I am having a heck of a time getting group
maps to work.

The problem is as followed: Share called "office" need to be accessible
to a group of windows users. The share shows filesystem permissions of
drwxrwx--x 50 user office. I have mapped the unix group office to a
domain group called staff assistants.

net groupmap list
staff assistants (S-1-5-21-3185994284-2127990412-3136590628-1007) -> office

Yet, I am still unable to access any files in the share from windows. I
receive a permission denied error.

Output of testparm is below.

Thanks in advance for any assistance!

Mike

[global]
workgroup = OFFICE
realm = OFFICE.MATH.PSU.EDU
server string = MathNet Samba Server %v
security = ADS
password server = dogwood.math.psu.edu
passdb backend = tdbsam:/etc/samba/passdb.tdb
username map = /etc/samba/users.map
log level = 3
printcap name = cups
ldap ssl = no
idmap backend = ad
idmap uid = 10000-20000
idmap gid = 10000-20000
winbind enum users = Yes
winbind enum groups = Yes
winbind use default domain = Yes
winbind nss info = rfc2307
hosts allow = 146.186.130., 146.186.132., 146.186.134.29, localhost

[homes]
read only = No
browseable = No
posix locking = No

[printers]
comment = All Printers
path = /var/spool/samba
printable = Yes
browseable = No

[print$]
comment = Windows Print Drivers
path = /etc/samba/drivers
write list = root

[julieandmary]
comment = Share for Julie and Mary
path = /home/fourier2/office/JulieandMary
valid users = @officeexams
read only = No
create mask = 00
force create mode = 0660
force directory mode = 0770
posix locking = No

[office]
path = /home/fourier2/office
write list = @office
acl group control = Yes
inherit permissions = Yes
inherit acls = Yes
posix locking = No

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