I was unable to bookmark, with a similar error message "memory full". I had editted some things out of My Clippings and it didn't like what I left behind. I deleted the My Clippings file (using the Kindle itself to delete it) and all was fine.
However - since yours doesn't save the current-page either, this might not help you. The Clippings file is only affected by bookmarking (and highlighting and making notes), I think.
But, in the My Clippings file, it does have to store the title line, when you bookmark. So yeah -- if there is a strange character in the book's title, that might cause all sorts of problems.
|