First thing to do is wait a few seconds, and click “RELOAD”.  If that does not work, you can always check with your ISP and verify that their service is working properly.  The most likely reason is that your security settings are set too high.  In Internet Explorer, click on TOOLS -> INTERNET OPTIONS -> SECURITY.  Click on INTERNET, and click the button marked DEFAULT LEVEL.  Check the site again.  Continue to lower the security level until you can view the site properly.  You can also check the CUSTOM LEVEL area and adjust the settings in this area.  Also, some sites require 128-bit encryption to view correctly.  Make sure that you have the correct cypher strength and try the site again.