Garageband and Garritan P.O.

Hi,

I have Garitan Personal Orchestra (both the full version and the Finale version) installed on my Mac, but Garageband can't seem to find the voices, and the prompt to find them stopped popping up. The generator shows up in "details", but the GPO designation does not show up "track info - software instruments". Can you tell me what I did wrong so I can use the voices, especially the handbell one?

HandbellRinger