I just got an infocus lp735. It was supposed to work but did not know how much bulb life it had left. I got it home and I can't get it to work. The fan runs and the buttons on top light up, but no lamp. I hooked it to a dvd using rca connections. Also, I thought at least I should have heard the sound from the dvd through it. I hear a little popping noise from the speaker though.