Not to long ago my macbook pro was acting up and being very slow. Along with that there came a point were some of my keys on my keyboard were unresponsive. Example: COMMAND+V gives me a lower case "f" and some other letters don't work as well. I tried resetting my pram but my p,r, command and option don't work. I was able to run disk utility to see that was wrong and happen to be that my HD was failing. I immediately installed a new HD thinking that this would some my keyboard problem, but it didn't. My Mac now runs a lot faster and smoother but I still have issues with my keyboard. What could be the problem and how can I fix it?