I have had Norton Internet Security for 4 years now. About 2 months ago when I go to open it, nothing happens. When I double the click the icon on the quick launch, I just see a white screen about 25 % the size of the monitor. I have to end the task with task manager. When I go to open it in ALL PROGRAMS under START menu, nothing happens. I can not run live update manually. I removed other security application, for example I had Anonymizer installed.