Hi, I have a MacBook Pro 2011 15" with i5 and 4GB and a 160GB SSD installed. System runs fine overall, but I've noticed when doing some simple tasks, I get the spinning wheel. For example, when I check "About This Mac" and then select "Storage", I get the spinning wheel for about 10-15 seconds. Also occasionally when opening a new finder window, same thing - something so simple. Just did fresh install of OS X El Capitan and I keep no data on this laptop, just use for browsing. I've already tried swapping out the SSD as well as well as the hard drive cable, but the problem persists. Any ideas what this could cause this and what to check next? Thanks!