samba 3.0.3-5 bug...?

[MG]

Hi!

I think the samba 3.0.3-5 has a bug in FC2. The simple share cannot work.
My smb.conf:
# ------------------------------
[global]
        username map = /etc/samba/smbusers
        server string = SAMBA host
        password server = None
        security = share
        workgroup = group
        client code page = 852
        character set = ISO8859-2
        
        hosts allow = 192.168.21.
        public = yes
        browseable = yes

[Install]
        comment = Install
        path = /mnt/hda4/Install
        public = yes
        browseable = yes
# ------------------------------


The win9x clients cannot browse the "Install" share, because samba asks the
password. Why? :O
It write nobody user and password the smbpasswd file. If I remove the nobody
entry from smbpasswd, then after next start samba write it back in smbpasswd.
In FC1 it was not problem. :(
Why does samba ask the password while the share is public(!)??

Bye!
Gabor