My Thinkpad notebook/Realtek LAN card running PClinuxOS will no longer connect to internet after I installed [then removed] the Guard Dog firewall.

I suspect there may be "orphan files" left from the Guard Dog installation but I have no idea where to find them or how to "clear" them.

Also the PCLOS Control Center > Network & Internet > Wireless Connection shows a Belkin card "network connection" that is no longer installed but has 5 green bars !!! I now have TWO connections - (1) the library hot spot and (2) the Belkin card. The library has the green circle.

I don't think this is blocking my connecting to the internet BUT how do I remove it I only borrowed the Belkin card and have no plans to use it.

Right now, I'm in a "mess" because I don't understand networking [or its terminology] and could use all the help I can get.