Some graphics missing from 4.5 documentation

Some, but not all, inline graphics in the Membership section of the documentation e.g. at http://book.civicrm.org/user/current/membership/defining-memberships/ fail to load.
Example of failing graphic: http://book.civicrm.org/user/current//civicrm/_full/static/Memebrship%20set-up%20for%20limited%20inherited.png
Example of a graphic on the same page that loads correctly: http://book.civicrm.org/user/current/static/z-sprint154%20-%20new_membership_type.png