No internet connection when smart firewall on - NIS 2009

Hi there, first post

 

I have installed NIS 2009 premier edition and can't now access the internet. The only way I can do this is to turn off the smart firewall. I have tried the symantec removal tool and reinstalling the software, no joy. I have even tried uninstalling my network adapter and then reinstalling it, again no luck. I am connecting to the internet via a Broadcom wireless card and Netgear DG834gV3 wireless modem/router. I am running Vista 32-bit home premium SP1. I know I can go on the net with the firewall off but I want to be able to get all the benefits of my purchase.

 

I look forward to your replies.