I am facing a really unique problem. I have looked over a lot of forums but cannot find a solution. I recently upgraded to WP 2.7.
I accidently noticed that some of my category permalinks are not working. For example on my site http://www.delhiplanet.com/index.php/category/analysis/ does not work while http://www.delhiplanet.com/index.php/category/cricket/ works.
I have tried all sorts of things, changed the default base values for categories and tags, played around with category slugs etc, but nothing works. The same problem is coming for some tags.
I thought it was some problem with the .htaccess file, which I could not find in my wordpress installation so I uploaded a new one. But even that didn't help. All my post permalinks work and there is no problem there.
Also I don't get 404 error or anything when I goto http://www.delhiplanet.com/index.php/category/analysis/, basically nothing loads and I get a blank page.
Has anyone faced such a problem. Would be grateful if someone could help.