Trying to install and use Arduino on IMac OSX El Capitan., version 10.11.4

Hello All.

I'm trying to install the software and work on the Arduino board.

Have downloaded software 1.6.8 and installed. Fitted jumper to power from USB.

Problem is that when I walk through the instructions at, then thee software doesn't seem to match the instructions.

Am I doing something wrong?



Where, exactly, do you get stuck? What part of the instructions does not match the software? Is the software close enough that you can figure out how the older instructions work on the newer software?