I have a serious problem with NIS 2011 and also, after communication with Norton Technical SUpport with NIS 2012. I fnd, using the Windws Task Manager that there are two instances of the process ccsvchst running on my computer. Neither instance has a user name although the problem one only shows up when I "showprocesses from all users.".
The problem uses up to 60% CPU for long periods of time and, under 2011, froze the PC requiring a hard power down to restart.
Anyone got a solution?