I got my 721 through the exec office at Dish. They also sent me new LNBs and a dp34 siwtch. Inside one of the LNBs box was a return slip explaining that I need to return the switch, LNBs and receiver (?). I don't have a receiver to return and they didn't say anythign about me returning the switch and LNBs. Do I have to do it, or is this standard to jsut include it in every box?