ADE Can't "transfert", "read" or "download" books

Hi,

I've got ADE on my computeur and my samsung tab connected with my account.

A book can be read with my computeur, but i want to read it with my tab.

- I can't open the .epub file : Error E_ADPT_INTERNAL

- I can't open the .ASCM file : Error : E_ACT_NOT_READY

- ADE don't download anything even if the download button in the options is activate.

What can i do to read the book in my samsung tablet?

Thx,