It seems to be a huge problem for people like me, who like to check out different readers, but I haven't had 6 readers... When I downloaded the $10 book, that I bought, the reader software said I needed to authorize the reader, before I could get it on my Sony... So.. I authorized and got the message 'too many authorizations.
I then unstalled Sony reader Software, ADE... ran the registry 'fixer'. Deleted thing in the 'restore' on ADE... downloaded everything again, and I still get the same message...
I am so frustrated, and wish I had never bought a Sony...