Thanks Bill. I'll try your suggestions.

@unknownuser said: I have a problem: when importing objects from wings 3d and blender that are exported in 3ds form, they show up incomplete! sometimes i get a simple fragment, and others, it looks like a machine gun bearing nut blasted it to bits. It has holes everywhere! Help Please! Possibly the models you are importing consist of very small surfaces. SU cannot fill faces that are smaller than about 1 mm square. You could try importing the model at a larger scale unit(like Centimeters instead of Millimeters or Feet instead of Inches) and then scaling the model down once in SU. Anssi