I'm trying to add a photo to my opening chalkboard. I've created a transparent, 32-bit, uncompressed .tga, and converted to to .vtf using VTFedit, also creating a .vmt file. The problem is, when I actually load the game the picture appears, but flickering black over the opaque parts of the image. (The transparent parts are properly transparent). It looks as though I've got a black picture z-fighting with the one I actually want. What have I screwed up?