Recent difficulties with ADE

For many years I have had trouble free borrowing from Borrow Box.

Having changed my computer and moved from Windows 10 to Windows 11 I have experienced difficulties.

I can borrow a book, download it to the computer and so read it but the transfer to my e-reader via Adobe Digital Editions no longer functions.

I have ensured that the edition of ADE is current, even dis-installing and installing again but on opening the app I am confronted with a blank page. The top line with "File Edit Reading Help" is all that appears, there is no list of books borrowed, "Help" indicates it is authorised to the computer but downloaded thumb print fails to open.

Can you please advise as I have no further ideas