Same with me... Im so frustrated now.
PC specs.
i7 Q720M , 2x GTX 285M sli, 8 gb ddr3 RAM, SSD os (ffxiv installed) disk.

Tried EVERYTHING. Sli activated, sli deavtivated, PhysicX on GPU or CPU or Disabled. TRied drivers from 2010 up til the neest one. NOTHING WORKS????? And it was fine b4 patch 2.1.. What did you do SquareEnix?????????

Also tried win 8, win 8.1 and win 7 nothng helps.. Black screen of DEATH!!! and blue screen sometimes!!