I have a GTX 680 overclocked with memory at 500, power 132, and gpu at 100, and in Heaven 4.0, with everything on max, 1080P, Tesselation extreme, AA at 8x, at fullscreen I'm only getting 38 fps, max 60fps, and a score of 760. Is there something I"m doing wrong? When I lower the settings and take full screen off, the score is higher.