I was able to reproduce with Chrome 3.0.195.27 on Windows; it's happening because Clicky Web Analytics has an image inside of a <p>, and you've styled p in foot

I was able to reproduce with Chrome 3.0.195.27 on Windows; it's happening because Clicky Web Analytics has an image inside of a <p>, and you've styled p in footer to have a background image. I was able to get it to go away by removing the style, or by removing the p around the image in the footer.