I have Firefox and Chrome on the same machine. Only Safari cannot display the pictures, the others are perfectly OK.
Safari is the only one that freezes on cookie popups such that I can’t set cookie preferences as none of the links work.
I have got “Prevent cross-site checking” disabled and I have no addons/plugins.
Looks like it might be something with my installation then if no-one else sees this behavior. I’ll look at re-installing from scratch but I bet it won’t allow it as its part of Mac OSX I expect.