samba: проблемы с доступом

поставил на рабочую машину samba 3. настроил, запустил. по идее должно
пускать всех свободно, но не пускает, требует логин/пароль.
подскажите, что я не так делаю

вот конфиг:

[global]

    workgroup = ITC
    netbios name = FRIDAY-PC
    server string = Friday's Workstation
#    security = user
    hosts allow = 192.168.0. 127.

;   load printers = yes
;   printcap name = /etc/printcap
;   printcap name = lpstat
;   printing = cups

    guest ok = yes
    guest account = nobody

    log file = /var/log/samba/log.%m
    max log size = 150

#    passdb backend = smbpasswd

    socket options = TCP_NODELAY

    local master = yes

    os level = 33

;   domain master = no
;   preferred master = yes


[programs]
    comment = Software archive
    path = /E/Archives/Programs
    public = yes
    browseable = yes
    writable = no

[music]
    comment = Music archive
    path = /E/Archives/Music
    public = yes
    browseable = yes
    writable = no

[docs]
    comment = Documentation
    path = /E/Archives/Docs
    public = yes
    browseable = yes
    writable = no

[incoming]
    comment = Incoming
    path = /E/Temp/Incoming
    public = yes
    writable = yes
    browseable = yes
    create mask = 0765