Favourite databases keep getting deleted

Hi there, I try to select a few favourite databases through the connection manager by clicking on the database’s box under the “favourites” headline. Then it appears in the groups panel, just like it should. However, each time i quit and open it again, those favourites are gone. it appears that there is a core of favourite databases that continually show up, but I can’t permanently add new ones.

Can any one help?

Simon