Missing wall textures.

I have no wall textures in doom builder. I have wall and ceiling but i have no wall textures at all. I have tried re installing the doom 2 WAD and re installing doom builder but i still see no textures.. All i see is nothing. I have looked up this same problem online for like an hour now and i am yet to find anything.

• Can you play just DOOM2, no mods, without a problem?
  
• Possibly the file C:\Users\computername\AppData\Local\Doom Builder\Builder.cfg got corrupted in some way. All the texturesets are stored in there.
  
  The best way to rectify this problem is to delete this file and let DB2, I assume that is the editor you are using, generate a new one by running DB2 after the deletion.
  
  

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  Doombuilder2
  

  
  
  Something to consider:
  Upgrade from Doombuilder2 to either GZDoom Builder Bugfix (DirectX9, same as DB2) or Ultimate Doom Builder (OpenGL 3.3 or higher), depending on your system's graphic card
  
  

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  Ultimate Doom Builder
  

edit:
Ah, I see that you installed Ultimate Doom Builder.
In that case the config file is in C:\Users\computername\AppData\Local\Doom Builder\UDBuilder.cfg