Whenever I have troubles getting Samba working, I follow the Samba Checklist: http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/diagnosis.html This pinpoints where the problem is. For FC4, here is what I had to do to get Samba working: * Open Desktop / System Settings / Security Level / Modify Policy / Samba / Disable SELinux protection for the smbd/nmbd daemon [so WinXP can see things] * Desktop / System Settings / Server Settings / Services / Samba * Desktop / System Settings / Security Level / Firewall / [eth0 trusted] * Compared /etc/samba/* to previous case and check all differences. (In my case, I also needed a username map.)