I have a home built in 1961. It does not have ground wiring; wall sockets were converted to 3-prong outlets under code grandfathering allowing it (I assume) prior to our purchase. My question's pretty simple -- can I use powerline network adaptors? I'd heard somewhere they use the ground wiring, and we obviously don't have dedicated ground wires. Can they work on an older live/neutral wiring system like that?