Richard clicked a couple of buttons and solved and the problem almost immediately.
As he was walking away, I called after him, 'So, what was wrong?'
He replied, 'It was an ID ten T operator error.'
I didn't want to appear stupid, but nonetheless inquired, 'An, ID ten T operator error? What's that? In case I need to fix it again.'
Richard grinned. 'Haven't you ever heard of an ID ten T operator error before?''
'No,' I replied.
'Write it down,' he said, 'and I think you'll figure it out.'
So I wrote down:
Spoiler: