Just a query about my Antec power supply. My new power supply tester arrived today. It has +3.3v, -12v, PG, +5vSB, +12v, -5v and +5v lights on it. I connected my Antec Truepower 750w supply to it and all lights turned green except -5v which did not register. Is this normal? I haven't a clue if all lights should come on, so your expertise would be much appreciated.