samba - Jan 2014 - ACL problem. Maps to user instead of group

Hi,

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I?m having some weird issue with setting an acl on my samba 3.6.20 server.

Look? at the picture below

This is the acl i set on a folder with my windows 7 workstation

When i review the acl on linux with te getfacl command i get:

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# file: Test

# owner: lars

# group: domain\040users

user::rwx

user:administrator:rwx

user:10512:rwx

group::---

mask::rwx

other::---

default:user::rwx

default:user:administrator:rwx

default:user:10512:rwx

default:group::---

default:mask::rwx

default:other::---

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Look at the user:10512:rwx line. It should say group:domain\040admins:rwx.

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The 10512 is the group numbe of ?Domain Admins? viewed with getent group. Why is
it setting a user acl instead of a group acl. What can i do to debug this?

The picture got deleted..

It was a picture of a windows file dialog where you can set the acl on a file.
I set an acl of the "Domain Admins" group on full control