Chiming in with the same. For what it's worth, I've got an R9 290 (current drivers), so it's not just an NVidia issue. Seems to have a chance any time I do something in the inventory or bestiary - selecting a different item, opening/closing books, whatever.
It does seem to have happened more since I ramped up the settings, but since that was also right about once I was getting out of the tutorials, I've obviously been spending more time in menus since so I'm not sure if that's related at all.
EDIT: Does anybody else have a controller connected at all when this happens? Once I removed my controller, it seems to have stopped happening. Obviously, this freeze is a little unpredictable, and I haven't really rigorously tested it, but I messed around opening and closing books for a bit and it's been good so far.
EDIT EDIT: Well, it seems less frequent, but still freezing in the inventory even without controller.
Post edited May 19, 2015 by Wikiheretic