I have NIS 2012 upgrade with clean install. Everything was fine. Now for the past one week, browsers, MozillaFirefox Ver.9.0.1 and Internet Explorer 8 often crash. And there is frequent interruption in the internet connectivity. I have contacted my Internet Service Provided and found the service is in order. The NetGear DSL Modem Works fine. On reading the postings in Norton community I suspect something is wrong with NIS 2012. I can not decipher the problem. While checking with the Computer Protection history IPS Statistical submissions and Norton community watch feedbacks are still pending with the NIS. Please enlighten me about this.