I have recently walked into the Bleak Falls Barrow, and I came across an invisible wall, just before the . For several minutes, I tried to jump, to run around it, and finally tried to cast a fire spell. And I saw this invisible wall disappear in a burt of torn spider web. I looked at screenshots to see whether it's normal, and it appears that spider webs aren't displayed the way they should be. After a very close examination of , I realized that the webs weren't totally invisible, but rather barely visible.

Do you know what's the cause of this bug?

Besides, my game keeps crashing regularly (even though it happens less often than before). My last crash happened when i was speaking to .

Probably textures not being loaded properly.

Better post your system specs (CPU, RAM, Graphics Card) and what settings you play on as extra info if you want people to help you.

You could give the http://www.gamesas.com/topic/1302450-antibsod-antifreeze-patch-7/page__hl__enbseries DirectX patch a try. It's indicated to fix this exact problem.