Rendering and tabbing through the menus goes well BUT - the following was reported:

• With NVDA/Firefox, while the menu item names (File, Edit, View) are announced, but nothing is announced that lets me know that I can expand them to hear more. Usually the space and enter key are used to toggle menus, but neither of those do anything.
• With NVDA/Chrome, I get the same experience.
• With JAWS/Chrome, I hear some more info: when I’m on File, I hear File alt plus F (then Edit alt plus E, View alt plus V). It seems like the latter two of these open up the menu visually, but I’m not able to navigate to any of the items with my keyboard or hear them with my screen reader.

The BIG issue seems to be the lack of indication that a SubMenu exists - is this a known issue?  Am I not enabling something I should be?

Current RadMenu config:

  <telerik:RadMenu AriaSettings-Label="Manage a Business Menu" runat="server" ID="m" Width="100%" Skin="Simple" Flow="Horizontal" RenderMode="Lightweight"
                EnableAriaSupport="true" CausesValidation="false" EnableOverlay="false">
                <KeyboardNavigationSettings CommandKey="Alt" FocusKey="M" />
            </telerik:RadMenu>