E-LIC-LICENSE-SIGN-ERROR

[Guest]

I bought an ebook from Macmillan Education eBookstore  . And I download the latest Adboe Digital Edition 4.5.5 , and I can download the sample ebooks. But when I open the book I bought, it says E-LIC-LICENSE-SIGN-ERROR, I can't download the book .  I desperately need your help, can you help me solve the problem? Thanks.

[mojohar]

When I attempt to download an ebook onto Adobe Digital Editions version 4.5.11 I am pesented with E_LIC_LICENSE_SIGN_ERROR and the book won't download. I have been using ADE for over a year with no issues until now. Can anyone help please?