filtering not working by default?

I have a Search box displayed above my table by default. When I type something into the search box, no filtering happens.
What am I missing?

        <script type="text/javascript" src="/scripts/jquery/jquery-current.js"></script>
        <script type="text/javascript" src="/scripts/jquery/jquery-ui-current-custom.js"></script>
        <script type="text/javascript" src="/scripts/jquery/plugins/jquery-hotkeys-current.js"></script>
        <script type="text/javascript" src="/scripts/jquery/plugins/jquery.dataTables.js"></script>

In my code:

$('#table_results').dataTable({
                        "bPaginate": false,
                        "bInfo": false,
                        "aoColumns": [
                                { "sType": "string" },
                                null,
                                null,
                                { "sType": "numeric-comma" },
                                { "sType": "numeric-comma" },
                                { "sType": "numeric-comma" },
                                { "sType": "numeric-comma" },
                                { "sType": "numeric-comma" },
                                null,
                                null,
                        ]
                 });

Thanks for any assistance. Driving me nuts and I know i'm just doing something stupid. Sorting is working fine...