After downloading the script mentioned athttp://sme.swerts-knudsen.dk/index.html?frame=http%3A//sme.swerts-knudsen.dk/howtos/howto_22.htmwget -N http://sme.swerts-knudsen.dk/downloads/AntiVirus/antivirus_install.shsh antivirus_install.sh fails with:-"Checking for existing installations.... Please wait!