Hi,
Can you post the full url of that file ?
I think the CuteSoft_Client/CuteEditor/Template.aspx cause that issue.
Please open that file , and remove these two line and test again :
<base target="_blank" href="<%=Server.HtmlEncode(referrer)%>" />
<link type="text/css" rel="stylesheet" href='<%=CuteEditor.EditorUtility.ProcessWebPath(Context,Page,"Load.ashx?type=style&file=SyntaxHighlighter.css")%>' />
Regads,
Terry