I think that happens when the texture files are not set with a proper relative path. Check the .mtl file in notepad and change /any/preceding/path.png to just be the filename itself, then when importing the object, make sure the .obj, .mtl and all texture files are in the same folder by themselves with no other texture or objects that could interfere with the import.

Nope, I'm having the same issue after removing the paths in the MTL, save the filename itself... I have just the OBJ + MTL and TGAs.

Edit: Seems when I'm holding onto a model, and attempt to shrink the object, by means of looking down, the model is shown with the texture.

Is it your own model or one you found online? If it's from online, can you link to it so I can check it out?

If you can see the textures at certain angles, though, does the model have tranparencies? For some reason, Superliminal sucks at rendering those properly and anything higher than 60% transparent renders at full transparency. Also, you would probably be able to tell, as the model would look broken, but are your normals flipped the wrong way? Superliminal only renders the outside of objects, so if they're not pointed the right way, the object textures would appear "inverted."

d was at 0. Texture's there now.
(My mother-in-law used to 3D model a decade ago; reminded me eventually via a forum post, of all places.)

Glad we figured it out then. :-)

Yeah, 3D modeling is fun. I only started learning it because of Superliminal, so most of what I know now only relates to how they do it.

If you have anymore questions, like proportions for how the editor's grid works, or anything else, feel free to ask.