The same happens to me. I'm completely unable to pass Bonechill Passage, because the game kicks me to the desktop.
Some people is saying that playing that part of the game in windowed mode solves the issue - I haven't tried it yet -, but it should be treated as a bug. I really like that cave and this bug is spoiling it.
posted a yesterday or so that its totally bugged
Tip: when you get in, follow the wall, dont get close to the ice pillar, there is a hole in the ground that will crash the game. on your way back you need to go backwards (no joke) until you reach the wolfroom, now turn around and follow the wall, you might need to make some quick saves, in there, then follow the wall furthest away from the pillar out again. took me about 25 crashes in both directions
