PB partage fichiers de windows vers ubuntu ?

bonjour,

j'ai installé samba pour me permettre de partager des fichiers entre mon PC qui est sur ubuntu dapper et mon portable qui est sur windowsXP.

J'ai suivi ce tuto :

http://doc.ubuntu-fr.org/applications/samba

pour avoir accès aux repertoires partagés sur windows de mon PC (ubuntu) vers mon portable (windows), pas de problème :) j'y suis arrivé mais dans le sens inverse, impossible :(

voici ce que me donne la commande testparm

nlav@nlav-desktop:~$ testparm
Load smb config files from /etc/samba/smb.conf
Processing section "[printers]"
Processing section "[print$]"
Processing section "[partage-nicolas]"
Loaded services file OK.
WARNING: passdb expand explicit = yes is deprecated
WARNING: You have some share names that are longer than 12 characters.
These may not be accessible to some older clients.
(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
        workgroup = MON_RESEAU
        server string = %h server (Samba, Ubuntu)
        map to guest = Bad User
        obey pam restrictions = Yes
        passdb backend = tdbsam
        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n *password\supdated\ssuccessfully* .
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        dns proxy = No
        panic action = /usr/share/samba/panic-action %d
        invalid users = root

[printers]
        comment = All Printers
        path = /tmp
        create mask = 0700
        printable = Yes
        browseable = No

[print$]
        comment = Printer Drivers
        path = /var/lib/samba/printers

[partage-nicolas]
        comment = sur PC ubuntu
        path = /home/nlav/video-yelena
        read only = No
        create mask = 0775
        guest ok = Yes
        hosts allow = 192.168.0.3
nlav@nlav-desktop:~$

comment puis-je modifier mon fichier /etc/samba/smb.conf pour reussir à voir les repertoires partagés de mon PC (ubuntu) à partir de mon portable (windowsXP)?

merci d'avance

A+