sybase problem

I am calling a store procedure in Sybase and it works, but I get the message: "NOTICE: Sybase_query() Sybase: Unexpected results, canceling current" Here is my code: $query = "exec pr_get_next_id 'call_id'"; $result = sybase_query($query, $conn); $value = sybase_fetch_array($result); print_r ($value); The store procedure doesn't nothing but return the next Key ID, we have been using it for years. The query does return the right value, but I get a notice warning. Does any know why I getting the message? Thanks, Mark.