I don't think so. This guy is a real computer light weight and basically only uses the internet for web browsing, email, etc.

In my experience, those are the ones who "discover" the pr0n pretty quickly.

But you're right, there's also the chance that he's been hacked and someone is using is PC as a free hosted site. Service pack the hell out of his system, scan it for viruses, and install a personal firewall (ZoneAlarm or Black Ice Defender).

For ultimate security, I would actually recommend a hardware NAT/firewall/router box. I personally wouldn't ever use a broadband connection without one.