I still need to try and reinstall the C++ stuff, but so far no signs of the bright white death. However, I am still getting the bug where places are just sometimes way darker than they should be. It only happens sometimes out in the overworld, but it seems like it's 100% of the time in caves, and the only way to fix it is to save in the cave and relaunch the game, which will fix it for a short while anyways, unless you jumping around like I am now with Keira, in which case it goes dark after a portal.