I have bought TWO e-readers, Sony PRS-T3 yesterday. The first one was no problem, after getting an Adobe ID etc, to connect to my PC (Win 7 Ultimate) and recognized by Sony's PC software "Reader for PC". But the second reader, same model, does not get connected to the PC at all. I checked on a second PC, AND both devices were recognized on it. So there is no problem to get connected when there is no Sony software installed and no Adobe ID registered at login on that computer. Is this an Adobe ID problem? And how can I solve it?