From: http://forums.tf2maps.net/showpost.php?p=217255&postcount=107 So I followed the guide on how to make custom poster overlays. I made 2 custom posters, both 512x512 awhile back and saved them as PNGs. I recently went back, loaded them up, made some changes and saved it as a TGA. Converted them to VTF's, created the VMT files and placed the files in both the Source SDK content's materialsrc folder, and in tf/materials. Upon loading up Hammer and finding the custom poster overlays I made, they're nothing but pink/black checkerboards. What did I do wrong? Was I supposed to just save them as TGAs and add some sort of alpha layer or something? I didn't see anything about adding alpha layers or anything in the tutorial.