I’ve switched to the latest Blender and I’m having some problems with the textures on particle billboards not appearing correctly. I followed a tutorial on creating a tornado (http://www.youtube.com/watch?v=iLxdpqJDfgs&feature=related) and as far as I’m aware I selected every option the guy mentions.
As you can see in the picture I’m getting black edges around the circle where I should be getting transparency.