I have followed all the steps and authorised my computer I have closed ADE and connected my device and then re opened ADE nothing. no device showing in left panel. I have clicked on nook in my computer finder and it opens a file and says nook set up which takes me to a page saying after a set up it will allow me to share files to my device from my computer so I followed the link. shock nothing. it just took me to Barnes and Nobel FAQ's and when I checked their answers for transferring from mac to nook it said everything I had tried the authorising computer then closing while I connect the device and re opening but it won't work... I am at a complete loss and something will end up out of the window very soon.