Not sure what's wrong then, but you can download the database containing all the preloaded books. Here is a link to the torrent, alternatively just search for
Kobo_db.zip
http://isohunt.com/torrent_details/1...ip?tab=summary
(All credit to Corona's post)
I used this package myself after reformatting my device without a backup, just copied over the contents and my Kobo was brand new. The file is 75mb, so a little large for most email clients.
Good Luck