Gobii eReader

I bought a Gobii eReader from Kalahari.com. I regisered at Adobe and downloaded the Adobe Digital Edition. My computor is authorized but it seems that ADE cannot “see” my Gobii to copy my e-books from ADE to my Gobii. Must the device be authorized as well and if so, how do I do it on the same pc with the same e-mail address? Is the Gobii from Kalahari,com compatible with ADE? What can i do?