Well …I went to my ISP (SBC) (my mail provider) and I think they provide a mail virus scanner that is already integrated in their browser. When I open a attached e-mail, it asked me if I want to scan it and I click yes, it scans it with Nortan Antivirus! So I am still confused somewhat. I had NAV before Avast! but uninstalled it. So I am not really sure what is going on. ???

Thanks for your help ;D