Hey guys, I've got this problem for some time now, when I transfer a book to my voyage, either directly dragging them to document folder or using calibre, even though when I check the folder or in calibre's device interface they can show up, but they just wouldn't show up in kindle, the same books had no trouble showing up on kindle 4 and dxg. I could send them to the kindle email and download them all right on voyage, but I still want the USB transfer to work, can any one shed a light on what could be the problem here? Thank you guys
