Thanks for reporting the issue.
Are you facing this issue with all book types (pdf, epub2, epub3) or with one of these book types ?
Please mention the ADE version you are using.
Once we receive more details, we will try to reproduce and fix the issue.
Adobe Digital Editions (ADE) software is required for temporary downloads of proprietary ebooks that have built in Digital Rights Management (DRM). This mainly affects ebooks the Library purchases from aggregator providers EBL, ebrary and EBSCOHost.
ADE is installed on some academic computers in the Departments, on some staff machines in the Library, with the bulk of use from University users on their personal computers and laptops.
Different versions of ADD will be in use on Campus.
We have tested both ADE 3.0 and 4.0. Ebooks are still downloading correctly and will open in ADE. However, there is no way to move through the book. The navigation tools are still active but do not effect the required movement within the ebook content. By this I mean that the scroll bar moves but the book does not. The table of contents navigation tree can be opened but does not work. Jumping to pages in the bottom tool bar does not work, and neither does using the search functionality
However, we have found that changing the Page View display will move to the required page. So, typing in a page number, hitting enter, then changing the Page View works; as does using the table of contents navigation tree and then changing the Page View
We are facing this issue with all book types (pdf, epub2, epub3)
Please try "Page up" and "Page down" keys for navigation.
let us know, if this addresses your navigation issue.