New Computer Error

[ebpda9]

I was having trouble with my computer, so I asked Harold, the computer guy to come over. Harold clicked a couple of buttons and solved the problem. He gave me a bill for a minimum service call. 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?"
The computer guy 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 out ........ I - D - 1 - 0 - T ......
I used to like Harold