I removed the BIOS battery for 15 mins like you said and when I put it back in and turned on it came up with the following message:
'Invalid configuration information - please run SETUP program
Performing automatic IDE configuration
Primary Master: Ide Disk Drive
Primary Slave: Ide Disk Drive
Secondary Master: CD ROM Reader
Secondary Slave: CD ROM Reader
Time of day not set - please run Setup program
Strike F1 to continue, F" to run setup untility'
Striking F2 took me into the BIOS setup which showed both HDs with the hitachi 400gb as master and the old 40gb as slave. I reset the time and date and on exiting the BIOS setup the pc booted to the hitachi which is now showing as drive C:
After previous experiences it is too early to say that the problem is fixed and so I am not getting excited but it does look very promising. :) I will come back after a few reboots and let you know.
am very happy. 2 restarts plus one complete power down and start up and the pc booted each time from the 400gb. 400Gb showing as C: with old 40gb as F: - Dare I say the problem is fixed? If so, removing the BIOS battery to reset the CMOS seems to have done the trick. Thanks a million Gizzle.
Thank you for all your help and patience.