On wikipedia-l, Kurt Jansson wrote:

After some searching and many errors I figured out that the AT&T article is under [[ATT]]. There seems to be a problem with the "&". I don't know if it can be fixed, but maybe we can find a way around this. The errors

I once fixed this in UseModWiki for another site, so it can be fixed. Just replace & with %26 in any externally visible URL. The page URL should then be:

http://www.wikipedia.com/wiki/AT%26T

(The + in C++ is a lot harder, and CPlusPlus is really ugly. But this too can be fixed.)