Than you should reinstall , or if you have an other language than english it should be located in garrymod/garrymod_[your language]/Materials/vgui/logos btw, i made a spray with these dimensions 256 x 128, so it is possible. but to be perfectly safe a square would do better, i guess I tried making the sprays in all formats, they all don't work. it says i haven't gotten the privileges to do that. only .vtf works with me and i tried this both on my vista and on another xp computer.