Avast does not recognize me (after five years), so I had to re-register with new name and details. Why? The icon in lower right tray shows Avast is "off," even though it is running right now. Why is everything so complicated? In my left tray it says Avast 5, but is that the most up-to-date FREE version? Can someone explain things in a non-technical manner for a simple person as I am? Thanks