Problem joining a Windows 2000 machine to a Samba server

[Jose Antonio Becerra Permuy]

	W2K machine's name is gsa10 and it has SP1 and later security bug fixes. 
When I try to join it to GSA domain (which PDC is a Samba server) I get an 
error. In log.gsa10 I have:

[2000/12/21 12:03:13, 0] smbd/chgpasswd.c:chgpasswd(514)
  chat_with_program: newpass contains control characters (disallowed).
[2000/12/21 12:03:15, 0] rpc_server/srv_netlog.c:get_md4pw(299)
  get_md4pw: Workstation GSA10$: no account in domain                         

	After the error, gsa10 account is ok in /etc/passwd but not in smbpasswd, 
where it has NO PASSWORDXXXXXXXXXXXXXXXXXXXXX as password.

	Samba is 2.2 CVS (updated two hours ago) and all the other things seem to 
work well: joining NT4 machines, profiles, printing (including automatic 
drivers downloading...).
	Is it a bug?

	Thank you and sorry for my BAD english.