Mount as read-only

["Hairulnizam, Zulkefli" <hairulnizam appliedmag com>]

Recently I set up a linux box (with Samba) to be used in a Windows 95
workgroup. I am able to share /vol1 dir in the linux box with other
workgroup members using the following config in smb.conf :

; /etc/smb.conf

[global]
  default service = vol1
  map to guest = Bad User
  security = share
  workgroup = TAPE
  socket options = TCP_NODELAY
  lock directory = /var/lock/samba
  dns proxy = no

[vol1]
  guest account = nobody
  guest ok = yes
  guest only = yes
  path = /vol1
  public = yes
  share modes = yes
  read only = no
  writeable = yes

I set "read only" to "no" and "writeable" to "yes" but after I mount the dir
/vol1 from another Windows 95 PC and try to edit the contents, it says that
the dir /vol1 is read-only.  Is there any mistake I've made or something
I've missed out?

Thanks.