Alan,

I've disconnected the DSL and the satellite feeds - neither of which were connected to the receiver - and the hum/buzz/vibration is still there.

I don't have anything connected to the receiver and as previously mentioned, I connected the sub to my onkyo 605 receiver and that did not solve the problem; and I didn't have anything connected to the receiver then either.

How do I go about buying another ground chassis screw? Maybe that will help?

- Majik

Epic 80 system
Ep 800
Denon 3808
Optoma HD20
PS3
vp180
extra QS8s (to come soon)