Now that you mention it Tallerin, I think I did copy the spells_us and spells_en files from my EQLive directory (they are dated 3/4/2005). I also received the same message you mention when trying to scribe a spell.
Unfortunately, I've long since lost my installation media for EQ and used the Everquest trial download to reinstall Everquest for my Live account. If the right versions of these files are also necessary, I guess I'm going to have to find another way
