Right now, my polarized plug on the received is plugged into a properly polarized and grounded outlet. I also have a grounding wire running from the grounding terminal on the back of the receiver to the outlet. I have hooked this wire up to the screw on the outlet as well as inserted it into the hole for the grounding prong on the outlet itself.

It seems to me (I am no expert) that this plug may not help in my situation. Have you used it with success in this scenario?