Hi, I have a problem with my projector. I bought it as used last spring and have been watching about 300 hours with it. Recently it started shutting down without any evident reason. It stays on about 5 to 15 minutes and then it suddenly shuts down leaving the lamp indicator light and power light red. My son got it somehow working for three straight hours with his laptop. He had the projected the picture to a wall about one meter from the projector which was on the floor. He, too, had had the same problems with the projector as I did, but somehow he managed to get it working a few times. But when I took the projector back home it continued to shut down all the time.