Can no longer connect to company website

My company outsources it's public webpage. Last weekend the hosting
company moved the webpage to a server in Dallas from Denver, no big deal
except that now we cannot connect to the webpage from our LAN. I can
connect to the webpage with no problems from home. When we attempt to
connect from behind the ISA server we get an error. Here is the text of
error generated by IE:


The page cannot be displayed 
There is a problem with the page you are trying to reach 
and it cannot be displayed. 

----------------------------------------------------------

Please try the following:

Click the Refresh button, or try again later.

Open the www.***********.com home page, and then look for 
links to the information you want. 
If you believe you should be able to view this directory 
or page, please contact the Web site administrator by 
using the e-mail address or phone number listed on the 
www.**************.com home page. 
10061 - Connection refused
Internet Security and Acceleration Server

-----------------------------------------------------------

Technical Information (for support personnel)

Background:
The server you are attempting to access has refused the 
connection with the gateway. This usually results from 
trying to connect to a service that is inactive on the 
server.

ISA Server: ******.***********.com
Via: 

Time: 10/30/2002 3:51:32 PM GMT


I have looked everywhere I can think of in the configuration of ISA and I
cannot see any rules or filters that would prevent this connection from
going through. Also we can connect to anyother website we want to, just
not our compnay website. Also, every once in a while when I attempt to
connect to the site I get the autosearch on MSN page that states the
domain name cannot be found. Any help or advice as to where to begin
troubleshooting this would be greatly appreciated.

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