I have a Integra DV-100 DLP Projector (basicly a NEC LT-150z). A few days ago I went down to watch a movie, fired up the projector and it came on, but it took forever for the bulb to warm up and display the picture. Ever since then it has been taking the same unusually long time to display the picture (somewhere between 4 to 5 minutes). Where before it took half the time. Any thoughts??? bulb going bad or what??? Let me know what you think.