Dammit, when night falls, everything turns red and invisible and it looks like I'm playing on a Virtual Boy. It makes it impossible to dig in the dark or even find my shelter really. But if I do find my shelter and just wait for the sun to come up, I can see through my walls and watch the monsters looking for me.
But it cuts my gametime in half so it really sucks. I Googled for the same mistake and it seems to be a problem on some random Macs. I might have to wait until I get a PC to really get into this game. Dammit.