My trackpad was working perfectly then one day part of it stopped working. The top part and some of the bottom works great, but theres like a strip of it that is unresponsive. How can I fix that? Do I have to take it to the apple store? If so how long will it take to get it back because i need it before I go back to school. Its a 13in macbook pro I got it on christmas so its still pretty new.