kashifbukhari on "Unable to redirect to a post while cliking on the post through dropdown list."

I have a problem that when i click on any post through dropdown list it doesnt take me to that post and main page appears with an old post.Even when i change the theme it works at the first but as i log out from the wordpress dashboard the current theme disappers and old theme takes place of that whereas in dashboard the theme is which i changed recently.what could be the problem and how to fix it......