Android tablet not syncing with ADE

Hello,

I couldn't find this in a search of the forums.

I have updated my Windows ADE to 4.5  - all my books are available as they were in the previous version (3.0). I have also installed the ADE app on my Android device, but my books are not synced. So in other words, I have no books available on my Android device.

- The automatic sync function is turned ON in both the Android and Windows ADE.

- the device is listed in the Adobe compatibility list (though it only lists the brand name and I guess different models might work differently).

- The Android device has been successfully authorised.

- the wireless connection is on and I have also tried connecting via USB. (When connected via USB the device does not show up in the Windows ADE).

Any help with this would be appreciated.

Loz