Vertical Shift Question
Apologies if this has already been covered, but the search tool for this forum didn't work too well for me.
I have an HD250 mounted on a shelf on the back wall of my theater room. The projector is 18' away from the screen, and is
mounted right-side up with the center of the lens 1 foot below the ceiling. The problem is the top of the image is also 1 foot below
the ceiling, and I cannot shift it any lower with vertical shift. The vertical shift can shift the image up (and onto the ceiling) pretty far,
but does not shift any lower on the screen. Any ideas on how to solve this?