Well, this all makes sense to me, a lot of this I actually did learn in school once but how fast we tend to forget when we don't work with it day after day ;-) We are a long ways from printing, (if ever), cause first, (when it IS finally done), we have to run it by a lot of folks including you's HERE and provided it MAKES IT through THAT, then comes the real fun; the REAL world, hehehe, hoo boy, (where's my suit of armor)!! Thanks for everything, this gives us lots to think about ;-)