Played with weapons for a while (yep, that was fun*). Stable crash when I start throwing spear while I have "not-cat" rapier and dog sword on my belt. Without swords on belt or just one sword everything is okay. Sadly no error code or something. Even log is empty on that matter. May be someone can reproduce this (on Windows 7, I guess), just in case, may be just mine local glitch and nothing serious.
*Good old slashing-impaling fun
And new spear impaling is just plain awesome. I don't know how I lived without it. Though, rapier looks like more... winning weapon than dog sword or spear most of the time. At least in my hands. Not that they are particularly good, more like the opposite.
**Oh well, checked on other level (not Desert Bridge) and... No crash. Strange.