I had this problem too, i play on an asus gaming laptop and i would get blue screen every loading screen while doing raids, my computer yes was overheating a bit on core number 2 witch is the core i think blade and soul runs, i dont know why it doesnt run on the other ones.. Anyway i contacted nvidea via email with this issue and they told me to change some things on nvidea settings for blade and soul, since then it never hapened to me again, i also turned down a bit the graphics and locked the max fps to 40 in order to not let it overheat, yes 40 fps, thats how i play blade and soul with a gaming laptop where i can play a ton of games on max settings exept this one...