How can I stop Avast blocking header downloads. I know it is Avast because when I disable it for 10 minutes the headers download fine. The main downloads are working whether it's enabled or not, just the headers I am having problems with. I have ME and struggle to take information in these days so if someone is kind enough to reply can you answer me like you are trying to educate the village idiot, with step by step help if at all possible.