I have had a Sony PRS350 for about 2 years and ADE for longer and have had no major problems (am I just lucky!) but suddenly ADE does not recognise the ereader when connected. I should say this has happened only since I installed the new Sony Reader for PC library but I cannot see why that should affect the operation of the reader with ADE. Can anyone suggest what might have gone wrong, please. Any help would be much appreciated.