So, for about more than a year my mac has been turning off at random. Sometimes more often than not, but it happens at least once a day. I have tried almost every solution, ive brought it in to apple store. But there is no problems they say. I have tried UPS, different sockets, but to no avail It will work at other peoples houses, so i assumed it was a house problems. So we called in technicians and found no problems with the house, except high voltage. Is that a problem? is there anything else i can try to resolve this issue? open to anything.. mac wont stay on long enough to provide specifics, but i have mountain lion. is it a house problem?