Answer to: Trackpad is not always responding to mechanic click.Well, even I am not believing it but I just slammed the %#*@ trackpad and it miraculously worked! I'm so bummed by this it's beyond belief. I thought I'd have to replace the battery and the trackpad but now I don't have to replace neither. Now I just have to replace the optical drive (it spits any CD/DVD I put in). It's a 2010 MacBook.