Have been facing problems with avast after an automatic update received from avast. Almost all the social networking websites have been blocked by it. I first thought it was problem with facebook later after opening some other websites such as youtube and stumble even they are facing the same problem. Then I thought is my system effected or what so had a quick scan of my system, I had facebok nearly 980 infected files all the files are html files. I think there is a problem with the recent update. Hope the next update of avast would clear this problem. 35/480 pages were effected when I checked out the web shield in Avast. Some gzip comes after every block might be it is the update from avast and causing the effect. Lets see what happens with the next update.