We have a GWT app that has multiple screens, based off of a menu. So App loads user sees

• Do This
• Do That

Each menu item loads a different screen. What is the best way to switch the screens. Right now what I do roughly is

RootPanel.get(CONTENT).remove(menu);
RootPanel.get(CONTENT).add(new DoThisScreen());

I ask this because it seems on IE 8 (and I am sure 7,6) that the DoThisScreen is basically not recognize by IE's Developer Tool (wannabe firebug tool, when you press F12). Using IE's dev tool I tell it to highlight a textbox in the DoThisScreen, for some reason it won't highlight it or list it in the html.