10.04->10.10 Personal File Sharing

[Albert Wagner]

In System->Administration, I had an item named "Personal File Sharing" 
as well as "Shared Folders".  "Personal File Sharing" behaved very 
badly, complaining about uninstalled software (unidentified) Related 
installations caused Synaptic to fail.  So I then tried "Shared Folders" 
and that app seemed entangled with the first.  I removed both entries in 
the Preferences->MainMenu app and activated "Shared Folders" again.  
"Personal File Sharing" no longer exists in the MainMenu app.  Yet, 
although I selected NFS rather than Samba, parts of the app still 
complain about parts of Samba being missing.

Is upgrading, rather than new install, always cluttered with artifacts 
of both versions?  I have used Ubuntu since 5.10, but have always 
installed new and never before upgraded.  Is there a list anywhere of 
such artifacts? Or should I just bite the bullet and install clean?