Nook 2011 Not Recognized by Macbook Pro Yosemite

howdy.

i have an older, basic Nook from 2011. i've transferred epubs bank and forth to it using calibre for windows on various win 7 / 8 laptops i own since i bought it. so i know my Nook can be recognized by calibre (at least with windows)

a couple of months ago i bought a brand new macbook pro direct from apple running the latest OS yosemite. i just downloaded and installed calibre on it. for some reason, my Nook doesn't appear on the Finder when i plug it in and thus it doesn't appear in calibre.

i've tried everything in the pinned / sticky thread and nothing has helped. there's actually not much to try there quite frankly. the only thing i haven't tried is rebooting my system.

should calibre / osx yosemite see my nook or is there a problem i should know about? if not, any thoughts? i'd love to be able to directly copy public epubs to my nook for an upcoming trip and i'm running out of time. i don't have my older win laptops anymore and need to have the same functionality on the new macbook going forward..

thanks!