anyone experience this? it makes watching movies in low volume levels impossible, the projector drowns out the audio. I have it place about 5 feet above and 1 foot back on a shelf from the seating position. When I start the projector is starts off quiet and the faw speeds up 3 seconds after start up loudly. my room is very cool, the air filters are cleaned constantly, and this is on low lamp mode. is this normal?