DDS Textures show up grey/blank in game.

[mcbmaestro]

I'm just trying to learn texturing by editing an existing .dds texture in GIMP.  However, if all I simply do is open a texture, then import it over itself, it shows up blank in game.  Is there a plugin for GIMP or something or am I not importing to a correct format or something??? 

Also:

I'm also really confused about the transparency on textures.  I thought it was the alpha channel but when I do "Alpha to Selection", it selects only a few bits and pieces of things while other things aren't selected.

 

 

[zer0Kerbal]

only answer I have is has to be DX5 version of .DDS

if importing from .tga/.png/.mbm - remember to mirror (flip) the image.