System: Mid-2009 MacBook Pro 13" Unibody, 2.53GHZ, 4GB RAM, 250GB 5400rpm HDD Problem: Recently, it has become very sluggish in just about all aspects. The beach ball shows up with clicks as basic as "About This Mac" to quitting an application. It happens in every application I can find. Startup can take minutes whereas it used to take seconds. It has frozen a couple of times at startup requiring a hard reboot to get it to respond. Troubleshooting performed: Cleared NVRAM, etc. Created new profile. Verified/Repaired Permissions and Verified/Repaired Disk Re-installed OS Zeroed drive and Re-installed OS again I also ran the Apple Hardware Test and it found no problems as well as S.M.A.R.T. status is good, apparently. ------------------------ It's still slow. Example of what just happened, I had just opened Safari and the page was fully loaded. I then clicked on History and it didn't respond, beach ball appeared for 3-5 seconds, and then it started responding again. Happening every now and then wouldn't kill me, but the fact that it's happening with 30-50% of my clicks is killing me. Not app specific, not fixed with OS re-install, SLOW SLOW SLOW! Is my HDD going bad, even though the AHT showed no issues?