we've noticed that it's not possible to place the left border (the beginning) of an input slice further than 8000 pixels, i can, however, place the right border as far as my composition is wide (in our case it's 9600x768 px).
is this a limitation of resolume or the operating system (win7 ultimate x64 in this case)?
another thing (not exactly a bug):
if you have rear projection screens with softedge, configuration becomes a bit tricky, because if both projectors are switched to rear projection mode, the "softened" image edges are on the wrong side.
we solved it by changing one projector to normal mode and then mirroring one output in arena.
so basically, it would be great to have a rear projection switch for output slices.
i hope it's clear what i mean

ben