Problem with serverside processing, sorting, filtering and refresh of the table

Hello,

I am using the latest version of the code, here is my code:

$('#listeProps').dataTable({
		"bJQueryUI" : true,
		"sPaginationType" : "full_numbers",
		"iDisplayLength": 10,
		"sScrollY": "400",
	    "bScrollCollapse": true,
		"bProcessing" : true,
		"bServerSide" : true,
		"sAjaxSource" : basePath +"/listePdC",
		"oLanguage": {
		    "sProcessing":     "Traitement en cours...",
		    "sSearch":         "Rechercher :",
		    "sLengthMenu":     "Afficher _MENU_ éléments",
		    "sInfo":           "Affichage de l'élement _START_ à _END_ sur _TOTAL_ éléments",
		    "sInfoEmpty":      "Affichage de l'élement 0 à 0 sur 0 éléments",
		    "sInfoFiltered":   "(filtré de _MAX_ éléments au total)",
		    "sInfoPostFix":    "",
		    "sLoadingRecords": "Chargement en cours...",
		    "sZeroRecords":    "Aucun élément à afficher",
		    "sEmptyTable":     "Aucune donnée disponible dans le tableau",
		    "oPaginate": {
		        "sFirst":      "Premier",
		        "sPrevious":   "Précédent",
		        "sNext":       "Suivant",
		        "sLast":       "Dernier"
		    },
		    "oAria": {
		        "sSortAscending":  ": activer pour trier la colonne par ordre croissant",
		        "sSortDescending": ": activer pour trier la colonne par ordre décroissant"
		    }
		},	
		"fnServerData": function( sUrl, aoData, fnCallback ) {
			this.jqXHR = $.ajax( {
                "url": sUrl,
                "data": aoData,
                "success": function(json) {
                	fnCallback(json);
                	//toto.fnDraw();
                },
                "dataType": "json",
                "cache": false
            } );
		}		
	}).columnFilter({
		sPlaceHolder: "head:after",
			aoColumns: [ { type: "text"},
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" },
				     { type: "text" }
				]

		});

My pb is that when I click on a column header, on a filter or on the pagination, the server is correctly called but nothing happens on the table, only the processing message at the top...

Any idea?