Tommy, Could be a couple of different things. When current flows through the wires in your home the voltage drops in the circuit where it is flowing and,thus,the lights go dim. For an instant when the refrigerator kicks on it draws a good bit of current and thus, the lights go dim until the current values return to normal. Perhaps you need to spread loads out over more circuits, place the refrigerator on its own circuit or, use larger wires on your circuits. Unfortunately, none of these will be easy or cheap fixes. Any other ideas, anyone?