ADE not showing my subsquent pages on ANY file

Hello!

I am in need of help with Adobe Digital Editions 4.5. I have long been using ADE on my previous laptop, but recently switched devices.

When I open the app and try to go to the next page, the content doesn't change. It stays stuck on the first screen no matter the file. Using the space bar, page up/down key, or the next navigation via the software all result in this. That is, all pages on every single file are, for all intents and purposes, exactly the same as Page 1. There is no problem with these files, it's definitely ADE with reference to my device.

I am not entirely certain if this issue has been there since the very first time I downloaded ADE onto this device or if it cropped up a couple times into use of ADE.

I can say, however, that I did change user accounts a bit (and so folder associations might also have changed) and I don't know if this would affect ADE's internal folders. I have checked for registry integrity violations, though and haven't found any, so don't know if this is a part of the problem. I have also uninstalled/reinstalled several times and used the compatibility troubleshooter on ADE, to no avail.

Can anyone please help me with this because I really like ADE and miss using it on this device?

(Images attached are of page 1 and page 4 of the file you get when you download ADE.) (P.S. They're exactly the same exept for the page # change at the bottom.)