samba PDC

[Cyber Source]

How does one add a Domain group in Samba? and locate service development 
files? Look at the log below and tell me what you guys might think. Thanks,

**Unmatched Entries**
rpc_server/srv_pipe.c:api_pipe_netsec_process(1371)  failed to decode PDU : 16 Time(s)
rpc_server/srv_pipe_hnd.c:process_request_pdu(605)  process_request_pdu: failed to do schannel processing. : 16 Time(s)
rpc_server/srv_util.c:get_domain_user_groups(372)  get_domain_user_groups: primary gid of user [dave] is not a Domain group !  get_domain_user_groups: You should fix it, NT doesn't like that : 16 Time(s)
rpc_server/srv_util.c:get_domain_user_groups(372)  get_domain_user_groups: primary gid of user [mike] is not a Domain group !  get_domain_user_groups: You should fix it, NT doesn't like that : 7 Time(s)
rpc_server/srv_util.c:get_domain_user_groups(372)  get_domain_user_groups: primary gid of user [tim] is not a Domain group !  get_domain_user_groups: You should fix it, NT doesn't like that : 5 Time(s)
rpc_server/srv_util.c:get_domain_user_groups(372)  get_domain_user_groups: primary gid of user [tom] is not a Domain group !  get_domain_user_groups: You should fix it, NT doesn't like that : 6 Time(s)
smbd/service.c:make_connection(857)  davexp (192.168.1.93) couldn't find service development files : 142 Time(s)
smbd/service.c:make_connection(857)  tomxp (192.168.1.99) couldn't find service development files : 225 Time(s)
smbd/service.c:make_connection_snum(705)  dave (192.168.1.92) connect to service public initially as user nobody (uid=99, gid=99) (pid 24505) : 1 Time(s)