Well it finally happened. Everyone was all settled in, I start the projector, I see the the image on the screen momentarily, then POP! The inevitable bulb failure and of course out of warranty. I figured I would open it up and see how difficult it would be to put a new lamp in. I opened the puppy up, Sim2 with no lamp door, and removed the lamp. Now, about time, here is my question. I noticed on the bulb that there is a top designated. If my projector is ceiling mounted, up side down, should I then invert my new lamp when I install it? Therefore keeping the top on top. Any assistance will be greatly appreciated.