When I use the generator, V0.3 (or the output from any previous ones), and pull them into inkscape, they look great. BUT, then from inkscape, write a dxf to take to the cutting shop, the dxf is just useless junk. BUT, if I take the original ones that snowdragon was emailing around, and save those as a dxf, they appear to be useable.

What is the difference ???

It's easy to see, just save one from the generator and pop it up in inkscape, save as a dxf, then load the dxf into irfanview, it'll show the issue. When irfan is happy with the dxf, then the cutting shop appears to be.