Bug Am I missing textures? Please Help!

[FinalFlame]

This is my first time posting so I am not sure if this is the proper place to post this but i am having a problem with the textures for many of the blocks in TE3. I am playing on the Direwolf20 1.6.4 mod pack and some blocks such as Energy Cells and Conduits, Portable Tanks, Transparent Fluid/ Item Ducts, Tesseracts, Machine inputs/outputs, and the Steam Dynamo (maybe) are not rendering properly. The Cells and Conduits as well as the Tesseract are missing their colored interiors and are see through. The tanks on the other hand are not showing fluids and the machines are not showing their side configurations on their exterior. The Steam Dynamo is not displaying its steam buffer in the GUI but i am not sure this is an issue with TE. I have included pictures for reference. I would love to know what causing this because, while most of these problems aren't really hindering my game, I find them incredibly irritating.

 

[tedyhere]

I am going to take a wild stab and say if you are using Optifine that could be the cause

 

[FinalFlame]

Okay, that was the problem except that the gui of the steam dynamo still doesn't show its steam buffer. Also my pc isn't the best and optifine does help a bit. Is there any way I can get this fixed without having to get rid of Optifine?

p.s. thank you for the speedy reply!

EDIT: Also do you know why Optifine does that, out of curiosity?

 

[tedyhere]

Ehhh, not all mods play nice with Optifine, and the steam dynamo thing has been like that... I don't know why

 

[FinalFlame]

Ah well, can't fix every problem. I guess ill just...blow them up...