Hi Downside,
I think what you are experiencing is something PCs 'DO' whether we interfere with them or not...

...and obviously, with dear old Norton, your going to get mysterious 'spikes' whether you doing something or nothing at the time..

..it's the nature of the Beast..
I always think of the old saying that 'If you hear funny noises coming from your car engine and you have no idea what they are......turn your radio volume up a bit'....

And, Yes, I agree, I think we should get out more....
Sorry if we've wandered a bit of your original request erin....

Michael72.