Hi all, I wonder if anyone could help me... I have recently upgraded from SL to ML (Now running 10.8.1) on my 15" 2011 MBP and since then my computer has just been randomly completely locking up - I get the spinning pinwheel and there's nothing I can do other than hold the power button to force it to turn off. I am sure it is getting worse too - At the beginning, when I upgraded it was maybe once every three or four days, which I put down to ML teething problems, however I have done this to my computer EIGHT times today. For some reason ML won't recognise my SL time machine drive as a time machine backup (Not that I particularly want to use that anyway) and short of completely restoring my computer I am somewhat lost as to what I can do to fix this problem. Any advice or suggestion please?! Thanks in advance!