Good morning. I have a 2013 MBP 15 inch, 2.3 GHz and I upgraded to Mavericks when it was first released. After doing the upgrade, my trackpad stopped responding to the "tap to click". I really dislike clicking on my trackpad. I fear that I'll break it again just like I did on my 2010 MBP. I didn't do a clean install of the Mavericks. I just did the upgrade. I have been clearing out the memory, and using Disk Doctor to clean hard drive. Went into System Preferences to see if there's anything else that could be done, but I'm out of ideas. I really don't want to do a clean install because it's a pain and will be upgrading when the new MBP comes out but in the meantime this is driving me crazy. Any help would be great. Thank you!!!