I have installed adobe digital edition (ADE) to my ipad 12 latest generation. I downloaded an eBook to ADE in the ipad. Whenever I touched the icon of the eBook in the ADE application to open it, ADE collapses. I have tried to re-install ADE, re-download eBook, but all in vain. Can you help? I need to prepare class material for my teaching with this eBook. A speedy response will be highly appreciated.