First, I posted a new article on http://thef1blog.wordpress.com few minutes ago. When I logged out and came back, the post had vanised !! Also when I tried to create a new posts & hit "Save & Continue Editing" the in-progress post again got vanished !!
Second, I changed the theme to Regulus of my other blog [neerajtikku.wordpress.com] but when I visited it again, the theme had restored back to what it was earlier !!