Question: trackpad macbook pro
I have a Macbook Pro 15" retina from late 2013. I often use it with two fingers, one in the lower left corner and one in the middle. It has worked fine, but recently stopped working in the lower left corner / left side. It still works in the middle. Is there a way to repair this? Is there anything I should do before I take it in to the repair shop?
MacBook Pro, Mac OS X (10.7.2)