'Read everything properly'
 It turns out that after trying to download Smart not book of the internet, while waiting I open power-point to copy images on an existing presentation, then I closed down all my open windows to expose power-point that I then mistake for smart note book. I have recently tried to download smart note book again to rectify the original mistake. I have just realized that I am trying to down load a windows application on to my mac. I have now successfully downloaded the correct one.