Hey everyone, I need some advice. My Macbook has been running terribly slow, even with just one program running. Say for example I am only using Safari with nothing else running I still constantly get the rainbow pinwheel and everything is slow, from starting the program, to running it even closing it. I was told by Apple that the cable to the logic board was bad, so I fixed that. Shortly after they told me my hard drive was bad, I replaced that as well. I still continued to have all these problems. I can't run more than one program at once without everything crashing. Apple also told me my battery is bad and need to be replaced, I'm guessing if I replace the battery and upgrade the ram a lot of these problems should iron out. In my research I found that having a bad battery can slow down your Macbook. Anyways I need help with 1) what this problem could be. 2)what is a good battery to get. 3)best type of ram to get.