Accessing Samba Shares using winbind

I have a RHEL 6 box setup successfully using winbind. I can SSH over to the Linux box and logon using my AD account. I can also see AD users and groups using wbinfo and etc.

I also have SAMBA up sharing out a directory. I can browse to this server and see the directory share via my Windows 7 workstation however when I click on the share it says "access denied" I cannot figure out why my AD account is getting access denied on this share.

Below is my global setting and my share config.

Any help would be appreciated!

#======================= Global Settings =====================================

[global]
#--authconfig--start-line--

# Generated by authconfig on 2013/11/05 12:07:43
# DO NOT EDIT THIS SECTION (delimited by --start-line--/--end-line--)
# Any modification may be deleted or altered by authconfig in future

workgroup = myworkgroup
password server = domain controller
realm = MYDOMAIN.COM
security = ads
idmap config * : backend = tdb
idmap config * : range = 16777216-33554431
idmap config MYDOMAIN:backend = rid
idmap config MYDOMAIN:range = 100000-199999
idmap config MYDOMAIN:base_rid = 0

# idmap backend = rid
# below line a test
# idmap config * : backend = rid
template shell = /bin/bash
winbind use default domain = true
winbind offline logon = false
# additional testing - next three lines made no difference
# winbind separator = +
# winbind enum users = yes
# winbind enum groups = yes

#--authconfig--end-line--

# ----------------------- Domain Members Options ------------------------
#
# Security must be set to domain or ads
#
# Use the realm option only with security = ads
# Specifies the Active Directory realm the host is part of
#
# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.
#
# Use password server option only with security = server or if you can't
# use the DNS to locate Domain Controllers
# The argument list may include:
# password server = My_PDC_Name [My_BDC_Name] [My_Next_BDC_Name]
# or to auto-locate the domain controller/s
# password server = *

security = domain
passdb backend = tdbsam
realm = MYDOMAIN.COM

password server = domaincontroller.mydomain.com

[testdir]
path = /testdir
write list = "MYDOMAIN+Domain Users"
browseable = yes
guest ok = yes