Same problem. Here's the markup
<CE:Editor ID="Editor1" runat="server" AllowPasteHtml="true" OnPostBackCommand="Editor1_PostBackCommand"
OnTextChanged="Editor1_TextChanged" Height="800px" Width="1000px" EditCompleteDocument="True"
EnableStripStyleTagsCodeInjection="False"
UsePhysicalFormattingTags="True" AllowEditServerSideCode="True" SecurityPolicyFile="admin.config" UseHttpHandlerCacheImages="False" UseStandardDialog="True" AutoConfigure="Full">
</CE:Editor>