After copious tests with the plugin and the setup of our page, we managed to make the Disqus plugin work under all browsers. However, under IE8 the login buttons are not shown!!

If you see the screenshots, everything works fine under Chrome and Mozilla. However, under IE, there are no login buttons hence the user cannot post any comments.

Any ideas?

Could you provide a link to your site?

Interesting I have not heard of this problem.