unable to load json object - please help

hi all.
i have been trying to implement your plugin.
some far very nice :)

we have just one major issue, we cannot seem to bind a json object to the dataTable.

we need to be able to get a json object independently from server side and then rebind it to the table.

we cannot seem to achieve this. in one of our attempts we are only able to see [object object] instead of the actual data.

here is what we did:

// this simulates the server response:
  var data = '[{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"1","col2":"12","col3":"13","col4":"14","col5":"15"},{"col1":"4","col2":"42","col3":"43","col4":"44","col5":"45"}]';
        data = $.parseJSON(data);

        $(document).ready(function () 
        {
            $('#example').dataTable({

                "bPaginate": true,
                "sPaginationType": "full_numbers",
                "oLanguage": {
                "sUrl": "dataTables.hebrew.txt",
                "sProcessing": "מעבד...",
                "sLengthMenu": "הצג _MENU_ פריטים",
                "sZeroRecords": "לא נמצאו רשומות מתאימות",
                "sInfo": "_START_ עד _END_ מתוך _TOTAL_ רשומות",
                "sInfoEmpty": "0 עד 0 מתוך 0 רשומות",
                "sInfoFiltered": "(מסונן מסך _MAX_  רשומות)",
                "sInfoPostFix": "",
                "sSearch": ":חפש", //"חפש:",
                "sUrl": "",
                "oPaginate": {
                    "sFirst": "ראשון",
                    "sPrevious": "קודם",
                    "sNext": "הבא",
                    "sLast": "אחרון"
                }

            },
            "aaData": [data], 
                "aoColumns": [
			
			{"mdata": "col1"},
                        { "mdata": "col2" },
                        { "mdata": "col3" },
                        { "mdata": "col4" },
                        { "mdata": "col5" }
		]
                        });
});

}

as we said the result is an empty table with [object object] on each column.
we realy could use some help.

thanks,

tae