Pebcak

PEBCAK is technical support shorthand (slang) for "Problem Exists between Chair and Keyboard". Generally this term is used by technical support personnel to describe a problem that was caused by the computer user as opposed to a technical problem with the physical computer equipment.

http://www.webopedia.com/TERM/P/PEBCAK.html

http://www.netlingo.com/right.cfm?term=PEBCAK

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