The problems started with the last two updates, more so with the last update. I've tried every suggestion given here with no luck, even went to lowest setting in display options.
Shut down all services suggested, would not start with NWZlauncher on it's own.
My system is an Intel I5 3.3GHz on an Asus P8H77 motherboard, using on chip Intel(R) HD graphics and running win7 ultimate.
Even tried disabling Xigncode3, but would start either.
It seems the problem occurs worst when someone playing is using a hack or similar, if that can affect the game.