I have no idea how you managed to do that to your bounding box. You might try exporting it as a .3DS and then importing it and welding all the verts (.3DS format breaks all the verts). If that doesn\'t work I\'m not quite sure what to tell you, that\'s never happened to me... If you can mirror it, weld the seem, and then unwrap uv it then I wouldn\'t worry too much about it (I should think anyway)...