Hello saintdale,
People cannot go out on the Internet these days without proper protection. What is this coming down to? Well only one, and I repeat one, resident anti-virus program, one and only one firewall solution. An anti-trojan program like Ewido or on an older OS a-squared free. And a solution to ward off adware/spyware/scumware, the three free programs: Ad-Aware, Spybot S&D, SpywareBlaster. The latter programs only to be installed when the system has been fully cleaned. What you could do to see whether the system is free of malware: download DrWebCureIt and scan all of your computer with it, download spywareaudit and scan all of your computer with it. No traces of malware, tracking cookies etc. Oh and keep the crap out from your machine by downloading and installing CCleaner. Surf safe - stay secure!
polonus