That's good to know. Thanks.It's pretty stable. Since the whole thing moves as a single solid unit, the map doesn't deviate at all.
Sean
EDIT: I did some more research and I'm pretty sure that's what it means. Of course, with your set up it's not an issue because the projection area is fixed. If mine is going to double as a cheap home theater, it matters some.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.