Just tried the Sheilds Up!! Stealth Analysis, and it says that my PC passed all tests EXCEPT the Ping Reply test (see below). I'm not sure this is bad - can anyone answer this? I am sitting behind a DSL modem / router. I am told that it is my modem / router that is responding to these PING requests, my firewall (Zone Alarm) can do nothing about it, my PC is secure, and I am not to worry. Is this true?