If your WP site is hosted on a windows server and you want to upgrade to the 3.1 you might end up a redirect loop error while attempting to access your site homepage after the upgrade is completed. However you can get to the WP back-end with no issue. Even if you try to install a fresh 3.1 on a windows server you will face the same problem.

All pages that have /index.php at the beginning of their permalinks come up with no problem means that the post pages if permalink is set in such a way that the /index.php is at the beginning of it would be accessible.

Deactivating all plugins, switching to Word Press 3.1 default theme won’t fix the issue because this is not a theme-related or plugin-related problem.  Even altering the permalink structure would not resolve it. Clearing the browser cookies also won’t fix it. Read the rest of this entry »