OK Now I can reproduce the problem at will and make it stop at will.
Here's the deal. The above site,
http://cute.bbexpo.com/cute5/default.asp works ok if there is no *functional* error 404 page defined in the "Custom Errors" tab. I created a file called error404.htm that contains this code:
<html>
<head></head>
<body>
<h1>Error 404!</h1>
</body>
</html>
Not too complicated. As soon as this file is in the website, it makes Cute Editor exhibit those problems. When I take it out, ** clear the cache for IE ** and refresh the page, the error is gone.
I can also duplicate this problem on my test server which is running Window 2000 Advanced Server fully up to date, and IIS 5.0
I hope that everyone can duplicate the problem now.
..Rick..