I seem to have picked up light.merked virus. Whenever I open my system I get a Network Connections box message of: "You have requested information from light.merked.us. Which connection do you want to use?" It then lists my internet connections. If I click on "Cancel" the box disappears but reappears in seconds. It also seems to have disabled Norton as I can't start it. I have run Skybot but it hasn't fixed it. Help! Any suggestions?