I just upgraded to 3.0. For some reason, sometime after I upgraded, when I go to "www.mywebsite.com/blog/" I get redirected to "http://www.mywebsite.com/blog/2010/07/08/the-title-of-the-most-recent-post/". This is true even if I unpublish that post and make it a draft, it still shows up and the front page still redirects to it. I haven't changed anything major or put in new plugins recently.
How should I troubleshoot this? Where do I start?
Category archives work just fine by the way.