I feel that I'm going to become a projector expert since I visit this forum so much lol. As everyone might have guested by now, I bought this projector used. I've been fixing the few things thats been wrong with help from all the fine people of this forum. Well the latest is that after about 2 1/2 to almost 3 hrs of play time the projector shuts down, why is this? is it a protection that the unit was design with, or is it something else. I have been scratching my head on this one cause it works so good.