Security Certificate error on the Community site

Hi!

 

Quick question. When landing on http://community.norton.com/  with iE 8, I sometimes get a Security Certificate error.

 

"Some content on the webpage was being delivered using a faulty certificate. Security certificate problems might indicate an attempt to fool you or intercept any information you send to the website or server."

 

2-1-2012 11-01-04 PM.png

 

Why would that be?

 

TIA,

 

Atomic_Blast :)