No idea, but if you play windowed you might be able to manually move the window to a position where the blind spot is smaller and on both sides, or something like that...
Tried that already, doesnt work, but thanks anyway. actually, I do know why this happens (probabley): i used my small tv as a moniter, and it displayed right, so since the display in my laptop is 13.3, thats probabley why that happens.
