[Samba] Problem with SAMBA & Winbind

[Dave Morrow]

I have SAMBA & Winbind working quite well.  Users are able to login with
DOMAIN+username.

With SAMBA sharing using the following config snipit, each user can see
their home directory from their Windows machine, but when they try to access
the directory, they are prompted for username/password.  No combination of
username or password seems to work.

   comment = Home Directories
   browseable = no
   writable = yes
   valid users = %S
   create mode = 0664
   directory mode = 0775

Any help would be greatly appreciated.