
You could try rebuilding the boot sector. Do you have the Western Digital drive tool disk? Slaving it to another bootable drive may work and have you swapped cables to see if that may be the issue..just guessing as I cannot tell without seeing the results of your trials…good luck…

Thanks to all who have posted.
I am puzzled by the apparent divergence of this thread into two sub-threads, so I will answer the same to both. I have tried the WD tools. The Windows diagnostics tool crashed Windows, and the DOS disk panicked as soon as it was run, instructing me to contact technical support, which I have now done.
I will keep you posted on further developments.
Thanks again to all who have posted.
Mike

Will be very interested to hear how you get on with this. A lot of high capacity drives are supplied with manufacturer drivers that load from boot sector. These drivers usually perform some sector/track translations to get round limitations of older MB Bios. Running drive as a non bootable slave will have bypassed this feature, and probably corrupted drive beyond recovery. Running the fixMBR is likely to have destroyed the original drivers, and made the drive unbootable as well. Only people likely to be able to help on this are manufacturers who may be able to suggest some recovery options and supply software to recreate original boot drivers. Sorry to be so pessimistic, but had a similar problem with a drive a couple of years ago, and never did manage to recover anything from it.












