I have been converting the spare room into a home cinema, building the equipment rack, hiding cables, etc. All under the watchful gaze of my wife, who reckons that this is eating into the value of the house. I am planning to purchase a Themescene H78. Can I put the projector on a shelf at the back of the room, in line with the top of the screen, on the opposite wall? Or should I try and persuade the management, that a ceiling mount is required? Ive downloaded the user manual, and sales brochure. They seem to be a bit vague as to how far the Vertical Shift moves the image. I dont want to angle the projector down towards the screen, as this would involve keystone correction, and Ive read that this is not a good idea.