Would you happen to know anythign in regards to the following issue?

I have done everything you have and even went through a complete reinstall of my IIS 6 instance. This is not a OWA, just a secure site using certificates. Everytime I select "require client certificate" the website doesn't promt for a cert select nor does it even generate an error. It just says "Internet Explorer Cannot Display the Web Page" and a bunch of other pointless info. Any ideas are apprecaited.

Ty