The Problem: If you use Disqus to allow comments in your website, you’ll find there is a layout bug if someone uses Microsoft IE9 to look at your website. Disqus has a layout problem in IE9. Text will go off the screen to the right side.
The Solution: This is easy to fix. Edit the DocType statement at the top of the HTML.
At the top of your HTML code, there is a line:
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>
Delete that. Insert the following line:
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”>
Try that on one page and look at the results in IE9. You can use a global search/replace to fix all pages.