Wireless Network Security What are the benefits to having a firewall? Problems with Aol 9.0 Security Center Edition Problems after updating to Windows Xp Service Pack 2 Problems after installing an Internet Security Application

What is Spyware? What is the difference between spyware and a virus? How can I tell if my computer is infected with spyware? I have AntiVirus/AntiSpyware Software, how can I still be infected? What can I do?