Shutting down Norton AV might be a good idea when rendering, but not such a good idea if the same computer has a full time internet connection. You'll be infected in 3.2 seconds or less. So, the advice should be if you have a full-time connection (and this is how I do it to protect myself): 1. Disconnect the internet connection (and any other connections such as LAN which may be indirectly internet connected). 2. Shut down NAV. 3. Go about your business 4. Restart system or NAV 5. Restore connection(s) Otherwise, you're just inviting virus attacks. With the nasty stuff going around these days, it is a constant seige which only appears to be mitigated because of the 200-ft thick titanium-steel embattlements in which we must take refuge...

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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