If I don't the computer will not shut down - sticks at the gray screen. And yes, I have booted from my OS X ML flash drive to
Repair Disk as well as Repair Permissions. No avail.
I've been using Macs since OS 7 in the early 1990s. Lion and Mountain Lion have been the least stable introductions since the switch to OS X (after its beta release). This is not just one computer, this is three - a 2012 Mac mini, a 2011 MacBook Pro and my 12-core Mac Pro. The Pro spontaneously shuts down on occasion, which never happened with Lion or Snow Leopard, and quite frequently my inbox in Mail disappears, requiring a quit and relaunch of Mail. What's remarkable is that I have the least amount of trouble with ML on my Hackintosh (and my MacBook Air).
It is my personal experience, but considering the hardware I'm running I shouldn't have this much trouble.
Of course not. Be realistic.
Oh, ok.
Of course, it could be hardware related, particularly with the Mini since it is th 2012 model and shipped with ML. Poor engineering could explain it. It's obvious that Apple f#ck'd up the design that's causing all the USB3/bluetooth problems. But that doesn't explain my Mac Pro troubles - there is no new hardware in that computer that wasn't there when it arrived with Snow Leopard installed two years ago. No problems with SL. No problems with Lion. But spontaneous shut downs and jacked-up Mail with ML.
Please, tell me how to fix them.
I've been cracking open Macs for 20 years. I've replaced a hard drive in a G4 lampshade iMac, which was the most difficult Mac to work on, even requiring fresh heat sink compound on the cpu during the reassembly. I've even disassembled an Apple TV to put an eSATA port on it. I've replaced hard drives in the G4 MacBook Pros that essentially required a complete disassembly of the unit. I've done quite a bit with Macs and Systems 7, 8 and 9 and all versions of OS X. I have never had as much trouble as I have with Lion and Mountain Lion.