I take online classes and most of my  books/modules are online.  I can read them online, download and/or print as I see fit.  I got the Nexus so I can download and read them, however I am having issues with this.  I can get to the site but once there it (N-7) says Looking for plug in, I do not know what this means.   I called for help, they said to unload and reload Adobe reader, I have with no success.
I have only had the N-7 for a few days and am getting a bit fustrated in not getting it to do what the intention of purchasing it for.    I need help or was my expection incorrect in thinking I could use this to read workbooks and I should return it.......

HELP. You all seem to be the expert.