OK so I hate to ask this as I'm sure the answer will be simple, but I've not found it. How can you get the Moon+ reader working with the PDN? I've got it installed but by default it remaps the volume keys to scrolling your book in the reader. Since there are no buttons on the PDN you then can't get to "menu" to adjust the settings of Moon+. All I've been able to do is pop the external SD card so it can't load the book and wait for it to go back to the Moon+ main screen. Thoughts?