Ok I don't really understand these firewalls at all, sorry. This one seemed good though from what you've been saying, so I've installed it. Please could you help with the following? 1) In the System configuration it has the option none, nat router, ip router, proxy server. When I opened it the setting was at Nat router, but on reading the instructions it seems that I should have it at "none". I'm on adsl with a router, but a stand alone computer. Is the setting "none" correct? 2) The network adapters listed only lists my ethernet connection and not my dial up one..how do I add this? 3) Under the Application and Component Trust I see listed something which just says "system" - with nothing else next to it and also "application layer gateway service" which is something in system 32. I've got these set as "ask". What are they and should they be allowed? Thanks very much, from a (as always) confused Piecan!