Well, Valve is continuing their legacy of totally breaking things with major updates... :facepalm: Eli's lab is EXTREMELY HEADACHE-INDUCING FULLBRIGHT now. And the skybox in the first part of it (right after you pass the dam and the "Black Mesa East" title appears) is totally broken - it's stretched so much that it looks like a bunch of awful smears on the inside of a cube. Not sure now if I can reset the materials to have actual proper lighting without disabling achievements - mat_fullbright is marked as a cheat. Also, the "Blast from the Past" achievement is broken - as soon as the scrapyard map loaded, I got it automatically, rather than actually having to find the HEV suit charger faceplate. Also, the console spams errors every time a new map loads, because apparently some materials aren't supported the same way on the new Source engine as on the old one. Also: I can't see fire. It simply doesn't render on my machine. It's been an issue in every game for me since EP2 (except, strangely, both L4D titles). EDIT: Apparently restarting the game will solve the fullbright issue, at least once you leave Eli's lab (so Ravenholm can be properly dark). Still doesn't change the fact that it screws up in the first place.