Guys, i have noticed a weird issue with my benq w1070, not a problem at all, but i wonder if this is normal. I have my PJ ceiling mounted, with pj position ceiling in the menu, when i switch it to front in the settings(the image shifts upside down, as it is ceiling mounted), the projector runs quieter, is this normal? Any1 can test this? Just change projector position in the menu and let it run for two minutes, is it a bit louder in ceiling and quieter in front mode? Thank you!