I understand, thank you very much for the explanation. I've read InsideRhino3 - so I've been exposed to the definitions - but of course it only sinks in bit by bit:) Practically, in my work and teaching, the only reason I EVER use 'handlebars' or draw bezier curves in Rhino is because that is the drawing methodology in Illustrator - which I think it a really important tool for artists to know something about. So it's really just so they can relate from one app to another. But I can explain the difference when we get there...

PS - I found a way to run MOI in Parallels, see attached.

http://www.transgaming.com/index.php?module=ContentExpress&file=index&func=display&ceid=8

So it looks like Parallels needs to either license this tech, allow users to buy it (instead of only allowing the demo with their dumb logo), or build one of their own.

Anyway, thanks!