samba - Jun 2005 - NT_STATUS_NETWORK_ACCESS_DENIED - Cannot browse shares.

Dear all,

I hope this is the right place to post?

I have just installed Samba 3.0.13, and unable to have any users connect 
to any shares.
My smb.conf is this:

# Samba config file created using SWAT
# from 172.16.22.24 (172.16.22.24)
# Date: 2005/06/29 10:18:35

# Global parameters
[global]
        workgroup = GEMINI-INT
        guest account = samba
        log level = 2
        ldap ssl = no
        idmap uid = 10000-20000
        idmap gid = 10000-200000
        template homedir = /home/public/%U

[WINHOME]
        path = /export/home3
        read only = No
        guest ok = Yes

However, I get this with smbclient:

smbclient -L locahost -U%
added interface ip=172.16.5.132 bcast=172.16.5.255 nmask=255.255.255.0
added interface ip=172.16.69.132 bcast=172.16.69.255 nmask=255.255.255.0
Connection to locahost failed.

Or this:

smbclient '\\localhost\winhome'
added interface ip=172.16.5.132 bcast=172.16.5.255 nmask=255.255.255.0
added interface ip=172.16.69.132 bcast=172.16.69.255 nmask=255.255.255.0
Password:

Anonymous login successful
Domain=[GEMINI-CHILE] OS=[Unix] Server=[Samba 3.0.13]
smb: \> ls
NT_STATUS_NETWORK_ACCESS_DENIED listing \*

                0 blocks of size 0. 0 blocks available
smb: \>

Does anyone know how to get this up and running?

Many thanks,
Simon.