I dont think there is any need to touch that setting, just tick the ones you want then change file size give that a go then see if you need to change any setting.............dave Edit:If you have auto mapped it there will be no over lap Thanks that worked for me. But just for the record. When do I need to envelope? I just bought the Game Enviroments and Props book from Michael McKinley, where you build a brick wall in the first tutorial. He first builds an a HiRes brick wall and drags a plane inside it. Then he goes to the Transfer Maps window and adds the diffuse map where he uses the envelope function either. I first thought this would be a standart procedure for creating textures.