samba - Dec 2000 - Samba/Macintosh question (desperated)

Hi!

I'm running a network of about a hundred computers.
Apart Linux servers, almost all clients are Win 9x machines, with the 
exception of a few Macs.

Well, they're the problem.
In Windows machines, everything is running smoothly.

In a Mac, i go to Chooser/Shares, the name of my machine running the samba 
server appears, i click on it, authenticate any user and the only share 
appearing, is that user's home share :(

The three ohter shares i have (below "Placard", "Secretaria"
and "Comum")
aren't visible to Macs :(

Any ideas why this is happening?
is something missing at the Mac side, or at Samba's?
i'm a complete Mac nerd :(
i'm running samba 2.0.7, with netatalk, and my smb.conf is as follows

Any help would be appreciated.

Thanks in advance.

M?rio Gamito
pt is for Portugal




#########################################################################
#                                                                       #
# /usr/local/samba/lib/smb.conf                                         #
#                                                                       #
# Criado por M?rio Gamito em 08/12/2000                                 #
# Alterado em 09/12/2000                                                #
#                                                                       #
#########################################################################

[global]
  workgroup = DDTE

  smb passwd file = /usr/local/samba/bin/passwd
  encrypt passwords = yes
  unix password sync = yes
  passwd program = /usr/bin/passwd %u

  wins support = yes
  domain logons = yes

  security = user
  os level = 34
  local master = yes
  preferred master = yes
  domain master = yes

[netlogon]
  comment = net logon comment
  path = /export/samba/logon
  public = no
  writeable = no
  browseable = no

[homes]
  comment = Areas pessoais.
  browseable = yes
  read only = no
  guest ok = no
  
[Placard]
  comment = Area partilhada para professores.
  path = /export/samba/Placard
  writeable = yes
  guest ok = no

[Secretaria]
  comment = Area partilhada para os funcion?rio da secretaria.
  path=/export/samba/Secretaria
  writeable = yes
  guest ok = no

[Comum]
  comment = Area partilhada para funcion?rios e Docentes.
  path = /export/samba/Comum
  writeable = yes
  guest ok = no

Hi!

Calvin and Marc:
Thank you very much for your help.

Indeed i believe the answer lies in a configuration file called 
AppleVolumes.default which now only has a "~" entry indicating the
home
shares.

I believe the problem is now solved, but i'll only be able to check it next 
Tuesday, since in Portugal, all public services (i work in a University) 
will be closed next Monday.

First thing in the morning next Tuesday is to check this out.

Thanks again.

M?rio Gamito
pt is for Portugal