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Norton AntiVirus 2009 conflicts with ZoneAlarm Pro 7.0.483.000
I installed Norton AntiVirus 2009 on my Windows XP (SP3) machine. I had previously set ZoneAlarm Pro so it would not load at start-up, to assure that it would not interfere with the installation of NA 2009. When I was sure that NA was working correctly and had the latest updates, I started ZoneAlarm. It came up but when I attempted to have it check for updates my PC locked up. I had to remove the power cord to shut the machine down (the shutdown button would not work). I tried reinstalling NA 2009 but it locked up near the end of the installation. There is definately a conflict between these two programs. NA 2008 worked perfectly with ZoneAlarm Pro.