I know there are probably a lot of these topics, but here goes. The construction set was working just fine, I was working on my latest mod, which is just a manor on a river, everything was fine until I tried to access the manor exterior to do some minor editing, the exterior started to load, then the CS crashed. I tried again, thinking that maybe it was just a one-time thing, but it happened again, and again, and again, now the CS crashes anytime I try to access any exterior area! Now, I have Windows 7, which means everything is installed in the Program Files(x86) directory, I have already tried installing the game and CS to another directory, it doesn't work, when I try to change the destination directory, it automatically changes it back to Program Files(x86)! I have one more thing to try, and if it doesn't work, then I'm lost! In the meantime, if anybody has any suggestions, please let me know!