(Don't want to sound boastful, I'm only stating it as a contribution.) My IQ is 140, measured at school, University and at other times, it always comes up as 140. My sister's is 146. We both use Microsoft Windows Explorer. My sis is a brilliant doctor, sharp as a whip. I was a teacher, for what it's worth. But Intelligence Quotient and IT literacy don't necessarily go hand in hand!