Open up the terminal and type
sudo pico /etc/smb.confScroll down to the [global] section and add the line
server string = A nice description goes herethen hit control-X then "Y" (to save the file and exit Pico).
Next restart the system and BAM! "Samba 2.2.3a� should be replaced by whatever you put for the server string. You can also change the hostname of the box (and the name that shows up in parentheses in the Windows box) by changing your Rendezvous name in the sharing portion of the control panel.
[Editor's note: I haven't tried this, but you might not need to restart. Try simply disabling and re-enabling the "Windows sharing" in the Sharing prefs panel first. It might do the trick.]

