i replaced my dimmer switch after the bulbs kept blowing they are 60 watt normal bulbs i have 3 small wall lights and 1 dimmer switch i simply unscrewed the old one and there was 2 wires only i put these 2 wires into the same holes in the new dimmer switch and fitted it back i turned the power on and they dont work the 2 wires were put back in the same way they was and are in tight 1 wire in each hole so any ideas why the lights dont work any more i will be grateful for any ideas thanks in advance