[1.52][SMP] Invisible Devices/Texture not correctly displayed

Hey,

ComputerCraft-Version: 1.52 Universal (Client/Server)

Description of Bug:
Some textures aren't correctly displayed, some do not even show.
Here are some screens:






Turtles seem to work… :


Steps to reproduce the bug:
Install Forge + Computercraft, start a new world, place some devices.

ATTENTION!: I have no other mods installed, except Forge. (Read http://www.computerc...sible-textures/)

what forge version .-.
make sure its latest: http://files.minecraftforge.net/

Forge log. I'm guessing you have an old forge.