Yep Nortons was dumped off my system a few years back now, nothing but trouble!!
Even screwed my clock by 100 years in one "update" [I kid you not] and that caused all sorts of problems with time sensitive stuff until I realised what had happened.
I use AVG pro now, much more stable AV than Nortons ever was IMO!

Injustice will be avenged.
Cofiwch Dryweryn.