Troubleshooting Nav updates

Two useful pages on troubleshooting communication between a Symantec client and the Symantec Corporate Edition client. These were given as part of a solution to a problem I have but unfortunately have *nothing* to do with the actual problem but are handy for other situations. A guide to the Grc.dat file in Symantec AntiVirus Corporate Edition 8.0, How to troubleshoot Symantec AntiVirus Corporate dition 8 communication problems