Well Kama you are the first person I have heard without Nis 2007 issues on any computer.
Personally I think you have your answer ustacp, if Norton cannot fix it and there are issues, uninstall it. Download and install Avast free and go into Control panel and activate Windows Firewall, and you will have a much better experience. BTW of all the bad Norton programs, Internet Security version has always been consistently the worst software ever made and year after year gets worse. I am talking now as software, not necessarily as an antivirus program though it is the poorest there as well.
www.avast.com