I'm playing on a low configuration and of course, I nedd Optifine to play. Since the latest version of Ender IO has been released, all stuff from the mod become invisible and I dunno why and how.
So I taked screen shots, in case of you can understand why.
Without Optifine;

With Optifine;

NEW EDIT: This thing can only appeared with Forge 1236. If you use Forge 1230, all the stuff is textured and visible.