[Samba] Win NT 4.0, browsing does't work

[Den]

Hi.
There are Samba 3.0.20b and 'local master = yes'.
If I use WInXP or Win98, I can browse network. All is Ok.

But I am getting an error
"The server is not configured for transactions"
when I try to browse network with Windows NT 4.0. I can connect to
some PC on network by `\\PCNAME' command. But can't browse network!

Could somebody help me?
Thank you.

samba's PC NT log:
[2005/11/09 13:23:30, 10] lib/util.c:dump_data(2053)
  [000] 4D 00 00 5C 00 5C 00 4B  00 45 00 4E 00 5C 00 49  M..\.\.D .E.N.\.I
  [010] 00 50 00 43 00 24 00 00  00 49 50 43 00           .P.C.$.. .IPC.
[2005/11/09 13:23:30, 3] smbd/process.c:switch_message(900)
  switch message SMBtconX (pid 4909) conn 0x0
[2005/11/09 13:23:30, 3] smbd/sec_ctx.c:set_sec_ctx(288)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2005/11/09 13:23:30, 5] auth/auth_util.c:debug_nt_user_token(452)
  NT user token: (NULL)
[2005/11/09 13:23:30, 5] auth/auth_util.c:debug_unix_user_token(473)
  UNIX token of user 0
  Primary group is 0 and contains 0 supplementary groups
[2005/11/09 13:23:30, 5] smbd/uid.c:change_to_root_user(319)
  change_to_root_user: now uid=(0,0) gid=(0,0)
[2005/11/09 13:23:30, 4] smbd/reply.c:reply_tcon_and_X(618)
  Client requested device type [\] for share []
[2005/11/09 13:23:30, 7] param/loadparm.c:lp_servicenumber(4226)
  lp_servicenumber: couldn't find
[2005/11/09 13:23:30, 10] lib/username.c:Get_Pwnam_alloc(307)
  Get_Pwnam: empty username!
[2005/11/09 13:23:30, 3] smbd/service.c:find_service(151)
  checking for home directory  gave (NULL)
[2005/11/09 13:23:30, 3] smbd/service.c:find_service(161)
  checking whether  is a valid printer name...
[2005/11/09 13:23:30, 3] smbd/service.c:find_service(171)
   is not a valid printer name
[2005/11/09 13:23:30, 3] smbd/service.c:find_service(208)
  find_service() failed to find service
[2005/11/09 13:23:30, 0] smbd/service.c:make_connection(798)
  zhack (192.168.0.69) couldn't find service
[2005/11/09 13:23:30, 3] smbd/error.c:error_packet(147)
  error packet at smbd/reply.c(626) cmd=117 (SMBtconX)
NT_STATUS_BAD_NETWORK_NAME