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Knackered: the 'T' '5' and a few other keys don't work. Left click doesn't work, to left click i need to tap the touchpad, however this requires about 8 taps before anything happens., the comp is very slow. I have tried Home sharing when I got the Mac and the music moved over up to C, refused to continue later, cannot seem to set-up home sharing again. Also, cannot download Migration Assistant (which the suggestion at the Apple store).  Talk  "