yes i have just had all this, do you also have any other norton products as there is a conflict between norton save and restore build 1 and norton internet security 2007 ver3.
no amount of uninstalling using NRT,clean boot, deleting left over symantecfiles, reinstalling programs, including deleting and reinstall of liveupdte in safemode will solve the problem. intelligent updater will update antvirus defs ok, and installing updates one at time will be ok till you get to firewall updates and norton protection centre updates these will fail.
nortons soluotion norton save restore build 1 has been corrected by build2 but you have to buy build 2 even if you have only had build 1 for only a week.
even had senior techs tacking control of my pc and saying various anti spy and google programs were the cause then macafee site advisor after all deleted surprise still had the problem.
complaint to norton waiting outcome not to hopeful.