Can someone please help me as I am baffled. I have downloaded Avast 4.6 onto my PC, but it hasn't installed the icon onto the taskbar, and doesn't seem to block viruses. I am concerned that it isn't running. When I access via the desktop icon, it brings up the 'CD player' style simple user interface app, and when I run that, it picks viruses up, suggesting that Avast isn't monitoring my traffic. I have tried the 'repair' option to no avail, and the 'change' option shows all the 'resident protection options ticked. What do I need to do to enable full protection?