You can change this in your Disqus settings, under customize. http://disqus.com/comments/settings/
Hey all, Daniel from Disqus here.
We’ve since issued a few updates to the plugin. Are you still receiving issues about this? Please feel free to send me existing bug reports to daniel@disqus.com and I’ll make sure they’re fixed.
http://wordpress.org/extend/plugins/disqus-comment-system/
