Forum Moderators: phranque
Can you reproduce the problem with your own Internet Explorer?
Have you checked the server headers using something like the "Live HTTP Headers" extension for Firefox? I would strongly recommend doing so.
Note that IE only shows "friendly error pages" if:
1) There is an error status returned by the server -and-
2) The content returned is very short. Depending on the error code, the lower limit may be 256, 512, or 1024 bytes, and below that, IE shows its own error page.
Jim