I am looking at it at Firefox and it seems to look right. Could you give me some more detail so that I can fix it?
Failed to load resource: the server responded with a status of 404 (NOT FOUND)
http://sitecommenter.com/generated_img/79.png
I think the image generation is failing randomly. I uploaded a gif showing how I see the interaction. I 'all take a look at it and update it soon.
http://nimga.com/m/3FYRo.gif