I sit 14,5 feet(4,5m) from where the screen would be, and I´m gonna buy an Infocus 5700. I was planning on going with a 106" screen(which would give me a width of 93", aprox 1.9x that is my seat..which should be safe). From my calculations(which are limited), this should be a good size. BUT when I went to the local dealer(which doesn´t have demos for me, so I can´t really find out what I like best), he though I was insane going that large and recomended going about 90" max. What size do you calculate(and would prefer) for that viewing distance?? Are my calculations or the dealer off? And also my ceiling is 2,5meters high, that would mean that the screen would be projected too high wouldn´t it. The top would me only about a 1/2 meter from the ceiling(and I sit 4,5m away and there is no back row)??