This is a good tip that i didn't know of! The image improved since i set the gl_texturemode from "gl_linear_mipmap_linear", which it appears to be the default for some reason, to "gl_linear", in user/config.cfg.
And this is the only thing that is required from what i can see, rvo_nl. These are simple text files. If it doesn't work for you, try with another text editor and see if the protection bits of the file are set to rwed.
