I have been operating quite happily for a few years running using Sygate Personal Firewall Pro in a WinXP Home SP2 laptop. Just recently I purchased an ethernet router/ADSL modem (PROLiNK 9000P). When I connected the laptop to the internet for the first time and ran the grc.com ShieldsUp test, a great number of ports that were stealthed before turned up closed. In addition, the laptop was responding to pings despite the fact that there is an advanced rule in my rule set prohibiting inbound and outbound ICMP traffic of all types and for all ip addresses and interfaces. In the few days since, I was able (thanks to expert advice) to stealth all ports again. However, I am still unable to keep the laptop from responding to incoming pings. I even wrote a new advanced rule (in case the old one was ineffective because at the time of its writing the interface corresponding to the ethernet modem was not in my system yet) but to no avail. Can anyone in this forum help me solve this nasty problem?