samba help

[MW]

hi all. im having a heck of a time getting samba to work. the error i am 
getting is this:

session request to POONTANG failed (code 0)
session request to *SMBSERVER failed (code 0)

poontang being the machine with the samba server running on it. smb and 
nmb start fine and testparm show no errors. here is my smb.conf:

[global]
workgroup = p00pland
netbios name = nutsaq
server string = %h server (samba %v)
security = USER
encrypt passwords = Yes
syslog = 0
socket options = TCP_NODELAY
dns proxy = no
wins support = no
invalid users = root
share modes = off

[homes]
comment = home dirs
writeable = Yes
create mask = 0700
directory mask = 0700
browseable = No

can anyone tell me howto remedy this problem?

-matt