you can always use the Texturefilter, also with Textures which are loaded automaticly. try this:
CLearTexturefilters
texturefilter "",2 or 9
load whatever you need to load with alphaflag on
cleartexturefilters
texturefilter "",9 ; reset to default mode
CLearTexturefilters
texturefilter "",2 or 9
load whatever you need to load with alphaflag on
cleartexturefilters
texturefilter "",9 ; reset to default mode