Oh wow, I feel so stupid. Sorry for the spam. I will be deleting this post in a few hours so you can see my response.

I've been playing on a single map for nearly 100 hours so far without any issues. However, suddenly I'm loosing all graphical saturation in the game at around 88 hours and 10 minutes....It's utterly bizzare: reboots, reloads of pre saves, etc. didn't fix it. However, it went away after about 30 ...