Maybe I should elaborate more on the problem with anti-viruse scanners.
There is a method of detection for finding bugs and viruses, whether they are Trojans, worms, phishing maps, ghost riders etc.
The hardest viruse to locate is a "ghost-rider" since it is burnt into the operating system. It copies and resends every keystroke you
type to a preset address. A person can get every detail of information on your system and every word you type in every window you open.
Most virsues are brought into your system from web sites that you visit, others are from emails that you open. Pop-ups are horrible about having
viruses attached to them and if you open one it will infect your system. ALWAYS, ALWAYS, ALWAYS have your 'Pop-up Blocker" turned ON.
Then you will see how much junk comes into your system. And if you don't want anyone else into your system, NEVER open a pop-up.
Doc