As we Silver Surfers know, sometimes we have trouble with our computers. I had a problem yesterday, so I called Eric, the 13-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 down:

ID10T ........