RadContextMenu does not appear when there are more than one forms on the page and one of them is hidden.
Steps to reproduce:
<!DOCTYPE html>
<%@ Register Namespace="Telerik.Web.UI.Debug" TagPrefix="debug" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="searchform" style="display:none">aaa</form>
<form id="form1" runat="server">
<asp:ScriptManager runat="server" />
<telerik:RadEditor ID="radEditor1" runat="server">
<Content>
<table>
<tbody>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</tbody>
</table>
<br />
</Content>
</telerik:RadEditor>
</form>
</body>
</html>