i noticed that in the last step of the importation if i change the measures it works
so i solved the problem, then!

PS - I also read this: http://sweethome3d.eu/faq.html#errorIn3DRenderingSystem

Let me know if you can fix it

i have the same problem plus the following:
- sometimes i try to download some 3ds from the internet and i get a non-3d picture which obviously i can't use
- if i try to create my own obj i get a white object without the chance to assign a texture or a color
- if i download a 3ds from the ...