It randomly. I delete option.sav - try enter - crash. I delete option.sav again try enter - entered. I exit from login. Change in option shadows off and lower quality - crash. Delete option.sav- turn shadows off both, shadow quality low - entered to game. Play a wile. Then I have animation bug (for all action only 1 animation - standing). I exit. DONT CHANGE ANYTHING - try enter - CRASH!
So I say - it randomly
I'm experiencing the same thing - if I turn the settings down, the game crashes when trying to log in. Haven't had time to experiment to try and track down the specific setting causing the crash yet (as login can be a bit time consuming), but unfortunately the framerate takes a bit of a hit here if I leave everything up.
Further experimentation shows that the culprit appears to be the water settings. I can turn the shadows off completely, but in-game, if I change the transparency of the water, the client immediately crashes.
Of course, now I'm getting the "already logged in" issue from having crashed out.