Kids, Don't you just love 'em

I was having trouble with my computer.
So I called Eric, the 11 year old next door whose bedroom looks like
Mission Control, and asked him to come over.
Eric clicked a couple of buttons and solved the problem.

As he was walking away, I called after him, 'So, what was wrong?'
He replied, 'It was an ID ten T error.'
I didn't want to appear stupid, but nonetheless inquired, 'An, ID ten T
error?  What's that?  In case I need to fix it again.'
Eric grinned ... 'Haven't you ever heard of an ID ten T error before?'
'No,'  I replied.
'Write it down,' he said, 'and I think you'll figure it out.'

So I wrote it down:  I D 1 0 T

I used to like Eric, the little bastard.