Hi All, Is anyone else experiencing any issues with the OS Sierra GM? I updated to Sierra shortly after it was released and had the usual keychain problems I would get whenever I installed a new OS, I rectified this and noticed I was beginning to experience new problems. Unresponsive when woken from sleep state (5/10 times) Not loading after password input after wake (7/10 times) Unable to locate startup disk (5/10 times) I decided to do a fresh install and format my HDD - same problems as before Hardware is good - New HDD ample Memory etc. Any advice would be good, anyone else experiencing this problem would give some reassurance? Thanks in advance.