SmartGWT 2.4 DynamicForm And ComboBoxItem Problem

[paatal]

Hi all,
I'm trying to run simple example about DynamicForm And ComboBoxItem.
here is :

public class InfoBilling08 implements EntryPoint {

	public void onModuleLoad() {

		final DynamicForm form = new DynamicForm();  
        form.setWidth(250);  
  
        ComboBoxItem cbItem = new ComboBoxItem();  
        cbItem.setTitle("Select");  
        cbItem.setHint("<nobr>A simple ComboBoxItem</nobr>");  
        cbItem.setType("comboBox");  
        cbItem.setValueMap("Cat", "Dog", "Giraffe", "Goat", "Marmoset", "Mouse");  

        form.setFields(cbItem);
        form.draw();

	}
}

But data is not available into ComboBoxItem. ComboBoxItem is empty

SmartGWT version 2.4
GWT version 2.2
Eclipse Helios Service Release 2.
Browsers : Firefox, Google Chrome.

[paatal]

sorry the problem is into google chrome (On linux).