Broken visualization of Table on IE7

[drenda81]

Hi,
I've created a table as in the example:

 List<TableColumn> columns = new ArrayList<TableColumn>();
        columns.add(new TableColumn("cognome", "Cognome", 150));
        columns.add(new TableColumn("nome", "Nome", 100));
        columns.add(new TableColumn("telefono", "Telefono", 100));
        columns.add(new TableColumn("email", "Email", 100));
        columns.add(new TableColumn("tipoUtente", "Tipo Utente", 100));


        // create the column model  
        TableColumnModel cm = new TableColumnModel(columns);

        Table table = new Table(cm);
        table.setAutoWidth(true);
        table.setHorizontalScroll(false);
        table.setHeight("350px");


ContentPanel panel = new ContentPanel();
        panel.setFrame(true);
        panel.setCollapsible(false);
        panel.setAnimCollapse(false);
        panel.setButtonAlign(HorizontalAlignment.CENTER);
        panel.setIconStyle("icon-table");
        panel.setHeading("Lista utenti:");
        panel.setHeaderVisible(true);
        panel.add(table);
        panel.setBottomComponent(toolBar);
        panel.setTopComponent(topBar);




 lc = new LayoutContainer();
 FlowLayout layout = new FlowLayout(0);
 lc.setLayout(layout);
lc.add(panel)
lc.layout();

The result in IE7 is a broken view as in the attached image.

Thanks!