@vht-dk
I usually just virus check all new software before I install it. I also regularly run a full HD check just in case! (especially when new xvs libs are available)
I recenty had to repair an ex-girlfriends PC.. I couldn`t believe it, riddled with viruses and trojans. I asked her what Antivirus she used, she said "what does an antivirus do?", and the question about firewalls left her with a blank look on her face!
I`m seriously beginning to believe that there should be a "computer license", to stop stupid people from being able to use computers.