Quote:

The HT circuit is not sharing the neutral ground with any other circuit. All the outlets and switches on every circuit has the secondary ground (bare wire) twisted togethor and attached to the green screws.

Am I reading that right? That the neutral (drop the term ground for clarity - it's a neutral wire) and the ground are connected at each wall box? If that's true, then you've got a serious issue. Your neutral should only be bonded (to ground) in ONE place in the house - at the main breaker panel. Even any other pony panels should have the neutral bonding strap removed. It's code.

And if I did read that wrong, and the neutrals aren't bonded at each box, then yes, all your neutrals are eventually connected together when they get back to the breaker panel. They're all screwed into the same neutral bar.

Have you checked for a floating neutral? Look for voltage between neutral and ground at the plug.

Bren R.