Core Locks Up when MD gets to 'Reading files needed to boot'

[Techstyle]

I just acquired a spare 200 Gb HDD.  I put it in my core and did a fresh install of LMCE 0710 - i386 - RC2.

Once install was complete I switched on my first MD and it installed fully.  I switched on the second MD I had assembled to test previously, it also fully installed.

I tried my PDA orbiter and that worked also.

Seems like somewhere along the way I have broken my installation.