HELP! WHERE statement crashes ODBC

I am developing an ODBC access progam using the ODBC SDK 3.0. I have a problem. When a SELECT statement is passed to an Oracle data source via SQLExecDirect, data begins transfering (via SQLFetch), but after a short time the application crashes. This only happens when a WHERE clause is included in the SELECT statement. When there is no WHERE clause, the data transfer proceeds to completion. The syntax of the SELECT statement is correct. Any ideas would be appreciated.

                Thanks,
                Bruce