by Taiyo.uk » Sat Jul 04, 2009 7:04 pm
It would appear that the system is confused as to the validity of the drive. The offending drive must be exposed to heavy impact damage. The ideal tool for this is a TBM at least ten metres in diameter, but a sledge hammer or a large SDS+ drill can be used, though this will make the process a little more time consuming. After this the drive will indeed be "no longer valid", and the system should operate without presenting this error message. Let us know how you get on.