Just encountered this…
Last year had Avast Free, signed up for paid Avast in March2012. Had several protection programs on computer and all ran fine for 3 yrs until today.
Tried to sign into a secured site and was denied, tried several other sites and again denied. Same time my Avast said it was expired…only problem was that even in the summary it noted my expiration date as 3-1-2013.
Called support, one tried a few things that did not work, said it was too many programs or virus so now it needed to be cleaned to fix…paid 99.00 to clean. After two hours tech said it was because of the expired Avast program…at this point not a happy camper and asked to speak to supervisor but was told no one available. Both the tech and I were getting upset so I tried to access a secure site…same issue on both Explorer and Mozilla. We were remote so he finally saw what was going on. Finally he did something and it was working. I asked what had happened to cause this issue and he told me that my computer was fixed and if I wanted to talk to a supervisor he would process and email. I SIMPLY wanted to know what had happened to cause this AND what he did to fix the problem.
Any ideas or explanations from someone would be greatly appreciated!
P.S. At this point I still do not have any security running on my computer as he removed all but the Avast and that is supposedly expired.