Hierarchical Select, exposed filter, taxonomy,associated with at least one node

Hello evrey body and thanks for any one can help me in advanced.
im using Hierarchical Select in exposed filter views 2.
how can i configure my exposed filter to not show all taxonomies in the select list of the filter , i want from it to show taxonomies with with at least one node associated.
i have tired enabling this option from Hierarchical Select inside the vocabulary
and i got this error

user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') count_alias' at line 1 query: SELECT COUNT(*) FROM () count_alias in C:\wamp\www\8keys\sites\all\modules\hierarchical_select\modules\hs_taxonomy_views.module on line 556.

and i also want to ask if i can use the same techinque but with cck field instead of taxonomy ,
i mean country : i dont want to show in the search list the list of countries with at least one node associated.

thanks a lot