MrCynical
Deity
I don't recall any crashing in quests...what platform and version were you playing? I got it on PC about a year ago, so it was patched...
This was on PC when it was new. As it happens crashing was a relatively uncommon way for it to break, though infuriating when it did happen as you'd always end up wasting a lot of your time, and replaying a lot of stuff you'd already seen. The first handful of sections were fairly smooth, but then it hit the "we didn't have time to polish it" phase. This resulted in all kinds of glitches like quest triggers not firing, doors that would let you in but not out, NPCs you needed to speak to in order to leave an area vanishing, and the game incorrectly firing "game over" screens. Basically any scripted section was more likely to break into a state where reloading was the only option, than to work.
The "false game over" bug was the one that finished it for me. It was during some main quest hunting sequence where you're supposed to rescue the stupid young lord I've forgotten the name of. The game popped up a "You abandoned him and fled" message, (a game over state forcing a reload) while I was actually in the "thanks for saving me" dialogue with him, having done it as you were supposed to. This after having wasted something like four hours repeating this section due to other glitches and repeated reloads aggravated by the game's rather masochistic difficulty.
It's possible they've patched it up, and made the save system less obnoxious, but I'm never giving it another chance after that.