Hi folks, I've currently got my Z2 ceiling mounted in the centre of the screen but using quite a bit of vertical lens shift (don't think I'm using much if any horizontal lens shift). Obviously the screen can't move and neither can my ceiling mount so will I be safe in assuming that if I replace the Z2 with another projector (e.g. Themescene H77) that I'll still be able to get it lined up ok with my screen without compromising picture quality? I know the H77 has vertical lens shift but no horizontal so I guess that's the main issue really. Has anyone else done something like this and come across problems, just want to know in advance that's all! Cheers, Andy.