ECN Forum Forums Technical Discussion Re: Computers and the Internet Adware and Spyware

I have Norton SystemWorks and Norton Internet Security, jooles. However, I may not have had the firewall feature running when the adware took over my e-mail homepage. I have a new PC with XP Home Edition. I've heard about closing unused ports (gateways?) but don't understand it. I have DSL (SBC). Can you tell me how to close off these unused ports, or a site with instructions? Thanks

Dave