I bought a new Lutron C-L Diva Dimmer. My existing single pole switch has a black wire and a white wire. My Lutron has a black, red, red/white and green wire. I know the green is for grounding. I connected black to black and white to red, capping off the red/white wire as the instructions said and when I turn the breaker back on, off is on and on is off on the paddle switch. I switched the wires and still have the same problem. Any suggestions? My wiring and the Lutron wiring seem to be different than other posts I've read with a similar problem.