> I just did a test with export to ai and hid a few curves and exported only the visible ones and it worked. Does this not work for you?

I'm sure it would, but the problem I am talking about are the hidden lines that appear on a solid. That is, the lines of the solid that are not visible to the viewer from their point of view. Inside MoI itself, these lines normally appear as faint dashed lines (unless you've turned them off completely), but in the Illustrator output they appear just like any of the normal, visible lines do. Sounds like Michael is going to address this in version 3.0 though...