Hi ash, are you sure that you have configured the web part correctly? First of all, you need to have an account on Disqus (http://disqus.com/). Log on to your account, go to 'Admin section -> Tools -> Add new website' and register your site here. Remember the entered 'Site Shortname' and use this name in the web part properties as 'Disqus shortname'. Everything should work correctly now.