I upgraded to WP2.7, and all seemed to go smoothly. However, I have problems accessing two menu items in the admin panel.
1. The main dashboard. /wp-admin/admin.php?page=index.php gives me a blank page. I can access the submenu items ok (e.g. wp stats)
2. The tools menu (and any of its submenu items) give me a a 404.
All other menus--settings, users, plugins, posts, media etc. -- work as expected. Any ideas what is happening and how I can fix this? Thank you.