Hi,
A bit more information.
I used a 2.5" to 3.5" IDE converter in a desktop PC. The IDE drive was the only device on IDE chain #2 of my PC.
I can not get to the BIOS screen with this drive plugged in! Arse!
I used some software to detect the drive, I think that may have done the damage, I can not find the name of this software at the present time.
I will look on the Hitachi website for some tools, the drive is a Hitachi DK221 IIRC.
Thanks for the advice so far.
Ian