I'm getting a problem with the site's security certificate. Says it's not valid. here's a clipping of what IE7 reports:

There is a problem with this website's security certificate.
 
  
 The security certificate presented by this website was not issued by a trusted certificate authority.

Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server. 
  We recommend that you close this webpage and do not continue to this website. 
  Click here to close this webpage. 
  Continue to this website (not recommended). 
     More information

If you arrived at this page by clicking a link, check the website address in the address bar to be sure that it is the address you were expecting.
When going to a website with an address such as https://example.com, try adding the 'www' to the address, https://www.example.com.
If you choose to ignore this error and continue, do not enter private information into the website.

For more information, see "Certificate Errors" in Internet Explorer Help.