Well i mainly use Autocad for my modeling purposes because its the only thing ive ever really fully used.anyhow, ive been working on importing and all that whatnot into gmax to add texutres, animations, and all that jazz, and ive run into a wierd problem. when imported the model looks perfect. i start texturing and coloring the different parts of the model, and then when i try to color the fuesalage, suddenly the whole drawing goes to hell.- heres some screnes,  Am i doing something wrong, or what...

in order the pictures

the model in Autocad
the model imported
the model textured