I am going to install Skype on my pc and laptop. I have read that Skye can use your PC to run their global service and this can cause effect your useage with your isp. I am using a netgear DG834GT modem/router with inbuilt firewall and norton firewall on my PC. On my laptop I am just using norton firwall when I am travelling. How can I disable Skype from hogging my useage with both firewalls.