Hello,
Try adding the zone as fqdn=.co.cr
It works!. Two details, though:
1. The name of subzone files would be now db..co.cr.
2. Because of the way FRED works (it associates a domain with a zone when
you register the domain), you can't simply change the "fqdn" filed in the
"zone" table for domains already inserted. You have to delete and create
again the domain.
Any further comments?.
Thanks and best regards.