My site is at untappedcities.com. After upgrading to 3.3.2, the categories on the homepage menu bar are now redirecting to random articles, showing a broken link, or redirecting to a URL that has dates added.
For example, untappedcities.com/category/urbanism forwards to http://untappedcities.com/2011/06/28/urbanism/
I tested out Twenty Eleven theme just to check, and the same issue occurs. I also deactivated the plugins.