samba - May 2010 - Error joining domain "The specified account already exists"

I have reinstalled samba from scratch and copied my previous smb.conf.
My main desktop was logged on in the domain. When I try re-add my main
desktop to the domain I get:

 "The following error occurred attempting to join the domain
"MYDOMAIN": The specified account already exists"

I  tried completely removing and re-installing samba which didn't work
either. Removing and readding the WINDOWS7$ useraccount also didn't
work. Thanks in advance for your help.


# tail  /var/log/samba/log.smbd

  pdb_get_group_sid: Failed to find Unix account for windows7$
[2010/05/16 10:00:41,  0] passdb/pdb_get_set.c:211(pdb_get_group_sid)
  pdb_get_group_sid: Failed to find Unix account for windows7$
[2010/05/16 10:00:53,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2010/05/16 10:00:53,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by peer.

I solved this with a workaround by renaming my main desktop.