Last night, I was going through my computer deleting a lot of things that I don't use or that I didn't think I needed (about 10 Gigs worth). I never went near my NoLimits folders, but when I start my simulator, first off, the loading screen text is all jumbled, then in the simulator itself, the sky is some weird metallic looking surface, the train's colors are all skewed, the rails of the track aren't the right color, the walls of the sky look like really dark, stormy clouds, and the only right color is the track itself and I think the supports. Can anybody tell me what I deleted? Or what I can do?