Just got a new air and noticed that the two finger swipe to go back or forward in safari is very unresponsive at times. Sometimes I'm just sitting there repeatedly swiping over and over until it finally registers. All other gestures work perfectly the first time, and my macbook pro has never had this issue. Anyone else experience this before or know whats causing it? It is an 11" if that matters. Edit: I should also note that if I change it to 3 fingers to go back and forward it works perfectly. When I change it back to 2 fingers it becomes spotty again.