A friend had paid for an upgrade from Norton Internet Security to NIS2005 online and had downloaded the initial file to her desktop. However, when running this file, she got an "error communicating with server" message and couldn't proceed further (internet connection was fine). Incredibly, the problem was the NIS2004 firewall! (no permit/deny window popped up, but disbling it fixed the problem).
Just thought I'd mention this in case other have the same problem.
I'm pleased to say that I ditched this junk and switched to AVG a few years ago and would recommend others to do the same.
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