i just bought a kindle 3 and it wont show a usb drive pop-up when plug in the little white cable. i have neither a wireless card nor a wireless router. i dont know what to do. when i bought the kindle my plan was to simple plug in my kindle, dl a kindle azw file via amazon, and transfer to my kindle 3 via usb. i tried this, sudo apt-get install mtpfs but my kindle 3 isn't being recognised.