ADE keeps closing

I have a Glowtouch 3 and it's been mostly fine since Jan with a few glitches.  Now I'm having almost the same problem like I did with my old SimpleTouch.  I can transfer library books to the Nook icon in ADE, but when I click on the Nook to see what's available or manage the library, ADE either shows NO content and/or closes itself.  I have tried reinstalling ADE and checked for updates on my Nook (none).  I can still open and read books on my Nook, but without the ability to manage anything, it's going to get messy fast.  Thanks in advance for any help.