Young Joanne, the editor of a (Noname) news publication,was having trouble with her computer. 
So she called Tim, the computer guy, over to her desk. Tim clicked a couple buttons and solved 
the problem. As he was walking away, Joanne called after him, "So, what was wrong?"

And he replied, "It was an ID ten T error."

A puzzled expression ran riot over Joanne's face. "An ID ten T error?

What's that ... in case I need to fix it again??"

He gave her a grin... ;-) ... "Haven't you ever heard of an ID ten T error before?"

"No," replied Joanne.

"Write it down," he said, "and I think you'll figure it out."

(She wrote...) I D 1 0 T