The "A Wikimedia Project"[1] button doesn't appear to be getting served from Bits like the "Powered by Mediawiki"[2] counterpart does.
[1]. http://en.wikipedia.org/images/wikimedia-button.png
[2]. http://bits.wikimedia.org/skins-1.5/common/images/poweredby_mediawiki_88x31.png
Version: unspecified
Severity: normal