Reddit made a couple of changes on their site earlier this week, breaking the current implementation of the reddit bar. This post details the two quick fixes to get the script working again.
The first fix was to remove the 1x1 pixel image that seems to appear on the reddit page. The picture, present at http://pixel.reddit.com/pixel/of_destiny.png?v= seems liek a tracker image. This change is
The second change was to remove the correct content; apparently, another DIV was assigned to the content class due to which, the actual content was still showing. The iFrame containing the page gets rendered below this. The change was to hide content.
You may have to install to the greasemonkey script again to get it working. I am also working on a generic way to update greasemonkey scripts, something I picked up from Yousable Tube Fix script.