If your asp menu elements hide behind other elements on the page, this could be a potential solution for you.

Surround the asp menu in a div with a z-index style with it.

<div style=”z-index:200″>
<asp:Menu ID=”Menu1″ runat=”server” StaticDisplayLevels=”1″>
<Items>
<asp:MenuItem Text=”File” Value=”File”>
<asp:MenuItem Text=”New” Value=”New”></asp:MenuItem>
<asp:MenuItem Text=”Open” Value=”Open”></asp:MenuItem>
</asp:MenuItem>
</Items>
</asp:Menu>
</div>

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From Webcosmo Webmaster Forum http://www.webcosmoforums.com/asp/25740-asp-menu-hiding-behind-page-elements.html