I finally came to my senses and ditched Norton Antivirus today.
I was going to keep it until my subscription ran out, but rather just said "To HELL with it".
I'm now using NOD32 which immediately found a trojan that Norton never saw.
Btw my pc is so much faster now.
Probably not news to anyone, but I felt that I needed to tell someone.
I still prefer the GUI of Norton, but it just blows so much.