SSL scanning prevents Internet Explorer 9 from correctly displaying certain HTTPS sites. For example, the airline website, virginamerica.com, is not displayed properly (you must log in for the site to use HTTPS instead of HTTP). Disabling SSL scanning fixes the problem. The site does display properly in Firefox 4.0 even if SSL scanning is enabled. Also, the site displayed properly with IE8 with SSL scanning enabled. In spite of the errors with virginamerica.com, I am able to view many other HTTPS sites properly in IE9 with SSL scanning enabled. I am using Vista Ultimate SP2 x 64 and running NOD32 version 188.8.131.52.