cannot access the homes directory

[Zhou Senqiang]

I installed samba 2.0.3 on linux 2.2.5.  I set up a "homes" section in the
smb.conf.  I can see the homes directory through win95 client.  when I want
to enter, there is a pop menu asking  to input the passwd.  But it doesn't
require input user name. I input several users' passwd and failed. Then I add
user list in smb.conf, like "username=XXX,YYY". Still cannot enter. How to
solve it? Thanks a lot. Following is a paragraph in my smb.conf:
  [global]
   workgroup = lab
   guest account = nobody
   keep alive = 30
   os level = 2
   security = user  

   [homes]
   comment = Home directory
   browseable = yes
   read only = yes
   create mode = 0700
  username = XXX,YYY