Right-clicking in nautilus on an archive (e.g. .tgz) shows duplicate menu
entries for 'Extract here' and others.
Guess it's because file-roller has file-roller.mime and file-roller.keys, but
it's also in gnome-mime-data's gnome-vfs.mime/keys
Strange. I don't see this in RHL9 or rawhide. What locale (language) do you use?
This works for me in RH9 too