Need Help 680 (Q44, V37)

I just took the Gmat my second time and went from a 610 to 680. I got the SAME Quant score and I left two questions blank the first time I took it. I really think a 700 is in reach; I just stuck on Quant. I seem to have the opposite problem of most people. I took a Manhattan Gmat class in the fall a...