I find ebooks much easier to read with version 1.7.1. (I have problems with my vision; my eyes are sensitive to light and white backgrounds.) Also, this version is much more aesthetically pleasing than 2.0. Do I have to upgrade? I keep getting the following message:
"There is a new version of Adobe Digital Editions available.Please update now.
[Update Later (Expires in 44 days)] [Update Now]"
I'm using 1.7.2, having reverted because of bugs in 2.0.
It hasn't given me any 'please update now' messages, and probably has same look as 1.7.1.
Version 1.7.2 is a little difficult to find,
UPDATE. 1.7.2 available on Adobe site for Windows and for Mac.
Thank you so much for your help, sjpt. 'Hope you have a Happy New Year! : )