The article "Minecraft" is empty except for the "External links" heading and it's contents:
Minecraft Wiki, official Minecraft Wiki
Persson's development blog on Tumblr
I'm using the 2012-04-24 base files and 2012-01-04 English Wikipedia files.
In previous releases (June 2011 base/enwiki) this article was completely absent and could not be accessed, along with other video game related articles such as "Half Life 2".
Does it work in the new build?