PMDG B744 Engine textures

Greetings!
I don't know exactly what happened, or if maybe I still had not noticed, that after I installed the the PMDG MD11 and/or the package with the boeing (with cargo version) that the textures of the Boeing 747-400 PMDG engines are not appearing, instead it only appears the 3D format and all gray color! Is correct that? or do I need to install again?
Thanks in advance for any help!
Marcos Godoy
http://marcosdegodo5.wix.com/mgodoy
I don't know exactly what happened, or if maybe I still had not noticed, that after I installed the the PMDG MD11 and/or the package with the boeing (with cargo version) that the textures of the Boeing 747-400 PMDG engines are not appearing, instead it only appears the 3D format and all gray color! Is correct that? or do I need to install again?
Thanks in advance for any help!
Marcos Godoy
http://marcosdegodo5.wix.com/mgodoy