How do I get rid of 'Invalid Certificate' Error in IE7?

You can tell IE7 to accept the "faulty" certificate permanently:

1. Click on the box to the right of the web address, which has "Certificate Error" in it.
2. In the Untrusted Certificate box, click on View Certificates at the bottom.
3. Click on the General tab and then click on Install Certificate
4. At the Welcome to the Certificate Import Wizard, click Next
5. With "Automatically select the certificate store based on the type of certificate" selected, click Next
6. At the "Completing the Certificate Import Wizard" click Finish.
7. You should see the Certificate Import Box, which should say "The import was successful". Click OK.
8. Click OK to clear the Certificate Import Wizard.

Now you have a permanent security certificate exception in IE7, so when the "faulty" certificate is presented to IE7, it knows that you accept in anyway by default.

Kind regards,
Dunc.