calling stored procedure from Micro Focus COBOL

Has anyone succesfully called a stored procedure from a COBOL program where the stored procedure may return a null value in an out parameter? When I try to return a null value the SP hangs on the server running up CPU time. As long as I return values everything works fine.

Thanks

-------------------==== Posted via Deja News ====-----------------------
      http://www.dejanews.com/     Search, Read, Post to Usenet