I know very little about firewalls and how they work, but I have a question. I have BT Broadband and my PC is protected by Norton Firewall. However, I've just replaced my internal PCI ADSL modem with an external modem/router (Thomson Speedtouch 530), which apparently has a built in firewall of its own. So, do I not need Norton Firewall now? Also, since installing the Speedtouch modem, my PC takes about 2 minutes after switch on before it will allow me to launch my web browser. Its quite annoying. Any way I can stop this happening?