OK, so this has got a 800x600 panel but masks to view widescreen. When you project this onto a widescreen screen with borders, I presume the masked area at the top/bottom will overlap the borders of the screen. If you then want to view a PC in 800x600 resolution do you then have to move and zoom/focus the lens? I can't see how this can be supported without a lot of hastle if the projector is fix mounted. Or am I missing something? Thanks azzo.