My mac keeps hanging after installing the 10.10.3 Yosemite update. Random Hangs, I can't point a cause, and it does not seem to be connected to any program in specific... it usually happens when doing a new action, like opening or changing a tab on Safari, starting a program, clicking on something, opening a file or editing, etc. The hangs usually last for about 10 seconds. Is anyone having the same experience? I have a mid-2012 MBP, 16 GB RAM, 500GB disk, i5 2,5 processor.