Right. I've got it mounted on a high shelf on the back wall. The shelf is about 8 inches from the ceiling. The projector is upside down and I have the lamp on low power and the fan on standard. When watching movies. Sometimes the projector light just shuts down and the pj enters into a cooling cycle. I don't get any warnings etc... and it's getting annoying. Has anyone else experienced this. Do I have a duff unit.