Thanks for the advice guys, I will swap them for something stronger when I get the chance...
Well, today I removed the instrument cluster, chopped off the protruding part and stuck a nice flat piece of perspex on, and re-fitted it. Lots of room now! Took it for a test drive to a friends house, came out, wouldn't start. Same old immobiliser problem.
Nice Green Flag man towed me home (unlike before when I didn't have a number plate!!).
So back to the drawing board, or finding someone who can re-programme the ECU, EWS and key. Something to do tomorrow. It had been starting fine, so don't know if it was the act of taking the instrument cluster out upset it??
Also, the speedo (Marlin-supplied) came on with the calibration setting in view, rather than the distance, and the speedo then didn't work. No amount of pressing the button or replacing the plug at the back seemed to work. Anyone else had this problem??
Thanks
Tim