Hi. I have a 13" mid-2012 Macbook Pro, OSX 10.11.2. The TYUIO keys are not working. This started about 6 months ago. I found that I had to press each key multiple times to get them working. The problem has gotten worse and the keys are now unusable. I have to press each key 30-40 times to get them to work. I'm not sure if it is a hardware or a software problem. Any suggestions? Many thanks! tonos para celular gratis, luxury girl