🚀 go-pugleaf

If this has been beaten to death, forgive me, but I haven't been reading
here for a while.

I have had a similar problem with booting a hard disk on a PC clone in
my office. The problem was finally traced to the fact that the drive
motor was having problems spinning the disk up against resistance
provided courtesy of spindle oil that had become sticky during a
cool down cycle. I had to turn the flywheel by hand (I know its 
dangerous) and then everything worked fine.

There are two options as I see them. First, take it in to your
friendly if not money hungry Apple dealer and have him look at
it and agree that you have a problem. The other is to leave the 
drive spinning at all times. Take your pick and good luck.

Remember, if you don't know what you are doing, make it look neat!