i have a retrogrphics that im trying to kick into life. its designed as a rear projector. the base boards etc are all std (for example it has switches to invert the picture) i would like to build it into a coffee table, or similar - lets just assume for the moment that it has enough keystone correction, but if one focus's it in the centre, the top and bottom are going to be massively out of focus. the chassis will not have any adjustment (but i have a dremel... ) but apart from makign the tubes perpendicular to the screen is there any other way of doing this? sorry for being dumb.. no doubt..