If the application toolbar and menu controls are not working properly, this is most likely due to the improper installation of the Microsoft IE Web controls. For more information, see “Setting up IE Web Controls on the server”.
You can use Telerik RadControls instead of IE Web Controls
for application toolbars and menus. You make this substitution by
changing the PBWebControlSource global property to RAD
.
For more information on global properties, see “Global Web configuration properties”.