It's not fair to users when they might have a multiple layered problem,
with some issues being technological and others being how the software
works. Disclaimer: there are other technological and software issues that
can produce the same symptoms. The 'solution' I've proposes is based on my
understanding of what you said. If this doesn't work, don't give up - just
tell us what else has happened, and we can address that.
I think you got the drift of my comments. However, let me give you more
information intended to clarify what I said before.
When ADE is installed, it remembers the Adobe ID and the computer ID. As
you download ebooks, ADE puts some of that data into a tag file which it
attaches to the ebook. So, the ebook is identified by ADE to the computer
When you attempt to read an ebook on the computer, ADE checks the user ID
and the computer information against the current information. If there's a
match, you'll never know it. ADE opens and you can read the ebook or
transfer it to an ereader.
If you change computers and move the ebooks to the new computer, ADE will
still do the check, but it won't open the ebook because the computer's
changed. ADE will let you put ebooks on more than one computer, but you
have to authorize them using your Adobe ID (in essence, you're telling ADE
that you've made changes).
The process is straightforward. You bring up ADE and deactivate it using
the CNTRL-SHIFT-D key command. When you attempt to open an ebook (one of
the ones you've transferred), you'll be asked to authorize again. You then
input the Adobe ID that you used when you downloaded the ebook, and ADE
'should' open it for you. From that point, your computer should pull up
the ebooks you downloaded before. You can do the same thing to get to the
ebooks you downloaded under your other ID.