Pandigital Novel

My Pandigital is back to life. I checked everything I downloaded, and I found out there were no books which I downloaded using Overdrive app. Remember ? The pages were not formated and text size adjustment didn't work. I decided to practice downloading again. Dowloaded an e-book on my computer and started reading it. Following Katya's recommendations, which I didn't remember well, I dragged the ebook from the computer into Pandigital. It died again. While Katya says "opening it with some other than Overdrive". As Customer Service didn't get in touch with me, I will probably go to Barnes and Noble to register it and see if they could help me.