Textures not showing in render viewport

[Aimee.clapshaw.2002]

I have added textures to some of my models in 3ds max, however, when I go to the render viewport the textures don't appear in the render viewport.

[Alphonsus0330]

Haz intentado con el UV Mapping escalar la imagen hasta su posicion ; en el editor de materiales que la muestra de la textura sea la principal y no el bump  ... no valla a ser este como mascara de relieve y no como textura principal 

[RobH2]

Is the "Mtl override settings' on by accident? If so, VRay will render the entire scene with whatever material is specified in the slot.