Hi icanseeu,
1. This issue should be fixed in the latest version, please download the latest version and try again.
Latest verstion downloads http://www.cutesoft.net/downloads/folders/21904/download.aspx
2. Also, you can try the way below
1) Open file "CuteSoft_Client\CuteEditor\Template.aspx"
2) Find section below and comment/delete it
<link type="text/css" rel="stylesheet" href='<%=CuteEditor.EditorUtility.ProcessWebPath(Context,Page,"Load.ashx?type=style&file=SyntaxHighlighter.css")%>' />
Regards,
Ken