rainyday-new.pk3
Problem solved, (for now.. 8) ). It looked like you just didn't set up the brushes right, but it turned out I forgot a 'cull none' in the second shader, so the properties of the texture only worked for one side of the texture only

. Now it works from both sides. I'm still not completely sure whether or not that was the real problem though.
Anyways, see the mapfile to see how I made the brushes, this way it's easier to select just one brush instead of two at the same time. (Select one of the brushes, hold down the Alt-key and move the brush out of the way useing the arrow-keys.) Oh and I made a hole/leak in the skybox so the map would compile a lot faster, just so you know;) All in all I think this screen-texture is a sweat idea and it looks really cool.