Can you please give more details about which operating system and which version of ADE?
Also, does this happen with all eBooks (including free ones from Gutenburg or similar), or bought eBooks, or library loaned eBooks.
Got it. My XP operating system has service pack 2, and 3 is required to support.
You may find the older ADE v1.7.2 works fine.
Version 1.7.2, it is a little difficult to find, available on Adobe site for Windows and for Mac.
The forum software is sometimes corrupting the link above. There shouldn't be a blank in 'editio ns.html'. The following redirects to the same page: http://tinyurl.com/diged172