Power cut during harddrive build.
Found out what caused the problem. Having accepted defeat, I switched off my xbox, only to hear crackling noises from my xbox. Checked power supply connection at the back of the box & could hear it crackling away. I can only assume this must have caused, a short power cut during my HD building process.
Anyway managed to get it sorted out
Noticed that C:\ evodash.x*e was empty. So i copied this file over from the disc. Also noticed there were other files (xboxdash_ffp.x*e, xboxdash.x*e, XB*x Book.x*f, Xbox.x*f) and folders ( xod*sh, xboxdashdata.185*ad00, Ski*, font*, Audi*, Trainer*), missing form my C:\
Using one of the file managers I was able to copy these files and folders, from HeXEn disc, onto my C:\ and now my xbox is working fine no error codes.
Now I am Just trying to copy important files before replacing the HD using Configmagic. I get the three files in my E folder, EEPROMbackup.***, but can not seem to locate the Backup folder with five important files which should be in the C folder.
Heimdal, Thanks for your help