Hi Jotin,
Thanks for the info. I have actual solved my problem by restoring the PC to an earlier time - 25th January 2011!! In doing so it completed (or removed) the following:
Installed Direct X Update
Installed MS KB942288-v3
Installed Driver Detective
Installed ATI Control Centre
Removed Driver Detective
I don't know if any of these where preventing the Buffalo disk from working. Any ideas? It may be, in restoring, a driver for the disk was also replaced. All is now well. I do have an update for the bios and have tried several times but it won't flash the new information onto it. I am using both XP and & 7 Ultimate by the way. As in another post I will check the boot order and remove any usb devices. Sorry I can't help others with any ideas.
Thanks