Ok the basic layout:

We are currently running a Samba 3 based domain, and slowly moving towards a
2003 based AD.

Almost everything is in place and working, except for one thing..

Unix/Linux systems, and getting them on the domain, properly.

The Unix attributes tabs show UP in Users and Computers, and all the options
are there, you can make selections, etc. But the moment you hit the ol apply
and ok, the window closes, and every setting you've made..

vanishes.

No errors, no nothing, but NO changes made on the Unix attributes for
users/group/computers, none of those changes seem to save in anyway. I'm at a
bit of a loss anyone have any background with this? Or have an idea that I've
missed?