I've built a 3D skybox for my map, I did everything that is said on the valve dev site. First I put the skybox over to the side of the map, compiled/loaded up the map, skybox looks fine, in the right spot and everything. However, while in-game, if a player looked to one side, another copy of my map is rendered in the skybox... If a player looks to the other side, you can see the skybox itself through the "skybox-wall"??? So then I put the skybox underneath the area of my map. you can't see the skybox itself anymore, but a bloody copy of my entire map is rendered high in the sky..... What is going on here? Do I need to enclose the skybox in closed areaportals or something?