I've had consistent problems with Adobe DE apparently goofing up my external memory card (either MS or SD). If I delete a protected PDF file (borrowed library book) (via Adobe DE) then close Adobe DE then eject/unplug the Reader it gets hung with the spinning arrows. If I pull the SD card it will finish and properly show the files on the Reader. If I put the card back in, the spinning arrows show again for a looong time, usually ending the Reader crashing.
I've formatted the card/MS (tried both) and re-added the content on that via the Sony software. Everything will be fine until delete a book with Adobe DE (note that I still wind up deleteing it with the Sony eBook software too, as I think it just de-authorizes the file). I keep all the Adobe DE files on the Reader (i.e. not on the MS/SD card).
I've yet to try just deleting the DE with the Sony eBook software, but I think I had the same thing happen when I deleted the book directly from the Reader, so I'm not holding out much hope there...
This is driving me nuts
Anybody else having the same problem?