IE8 shows "Internet Explorer cannot display the webpage"
I've got a strange one.  I just installed IE8 on XP, and a site I manage now cannot be displayed.  When I go there, I get:

This problem can be caused by a variety of issues, including:

"Internet connectivity has been lost.
"The website is temporarily unavailable.
"The Domain Name Server (DNS) is not reachable.
"The Domain Name Server (DNS) does not have a listing for the website's domain.
"There might be a typing error in the address.
"If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section

Page properties are:  res://ieframe.dll/dnserror.htm

I've tried connecting directly, connecting through Privoxy (locally), auto-detecting network settings, no change.

If I go to the https site, I get security warnings, continue anyway, see the insecure warnings, then see the entire page, then a message:  Internet Explorer cannot open the Internet Site ..., then it goes to the above error page.

However, connectivity is fine.  I was browsing it in IE7, and can browse it now in FF/Chrome w/o issue.  It's something in IE8 causing it.

I've spent over an hour googling, and nothing seems to fit.

The problem was reported by a customer, and I've duplicated on my machine.  Therefore, the standard firewall, etc. aren't what I need.

Any ideas?  
IE8 shows "Internet Explorer cannot display the webpage"
===

I've got a strange one.  I just installed IE8 on XP, and a site I manage now cannot be displayed.  When I go there, I get:

This problem can be caused by a variety of issues, including:

"Internet connectivity has been lost.
"The website is temporarily unavailable.
"The Domain Name Server (DNS) is not reachable.
"The Domain Name Server (DNS) does not have a listing for the website's domain.
"There might be a typing error in the address.
"If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section

Page properties are:  res://ieframe.dll/dnserror.htm

I've tried connecting directly, connecting through Privoxy (locally), auto-detecting network settings, no change.

If I go to the https site, I get security warnings, continue anyway, see the insecure warnings, then see the entire page, then a message:  Internet Explorer cannot open the Internet Site ..., then it goes to the above error page.

However, connectivity is fine.  I was browsing it in IE7, and can browse it now in FF/Chrome w/o issue.  It's something in IE8 causing it.

I've spent over an hour googling, and nothing seems to fit.

The problem was reported by a customer, and I've duplicated on my machine.  Therefore, the standard firewall, etc. aren't what I need.

Any ideas?  