Hhhmmm, the "Spanner > Bookmark Manager" has stopped working?! (And still no Page Setup?)
Edit: Just researching the "Bookmark Manager" issue (blank/empty page) and it appears to be something that has affected others in previous versions of Chrome as well!?
I can get a working "Bookmark Manager" by typing chrome://bookmarks in the Address bar (omnibox), but not via the menu option!? (And this only works if the Bookmark Manager is not already open) - actually this has stopped working for me now as well!