New AJAZ dll Crashing ModalPopup

Hi,

I just installed the new AJAX dll in my web application and now I am having problems with my modal popup extender.

Everything works fine when I can the control from the client side, but when I call it from the server side, nothing happens.  When I ran it through IE 9 debugger, I get a break stop at the following code line:

document.getElementById('Left_Content_Box_ValidationSummary1').dispose = function() {
    Array.remove(Page_ValidationSummaries, document.getElementById('Left_Content_Box_ValidationSummary1'));
}
(function() {var fn = function() {Sys.Extended.UI.ModalPopupBehavior.invokeViaServer('Left_Content_Box_ShareSettingsPanel_ModalPopupExtender', true); Sys.Application.remove_load(fn);};Sys.Application.add_load(fn);})();

The error says:  "jScript Debugger: Breaking on JScript Runtime error - Object expected"

Does anyone know how I can fix this?

Thanks.