Mac OS X Demo Now Available: Version 1.0.679 (Beta 2)

[Architect]

I forgot to mention, it went black for me too when I went down the ladder the first time.
I had to force quit the game, but the second time it worked. I think I pressed escape to
skip the "audio cutscene".

That's a good tip! Thanks. I just tried it and it got me past the ladder shaft.