I have the same problem, i have installed Adobe Digital Editions 4.5.1 in 4 computers all of them the double-page view is not working even pressing ctrl + shift + t is not working.
I have the same problem. The highlight and annotate functions are grayed out on the po-up menu on my current book.. But they work on another book. Whyk?
I have this same problem. I'm using the program to review comics, and I have no way to view double-page spreads. This is a major problem and it needs to be fixed.