Simple bug: You go to your user profile, under the image there is your reputation which links to reputation changes (something like this:
However, when you hover over that number (your reputation, under your image, in your profile), it is supposed to be underlined (as I can see in stackOverflow for example), but the line appears 1/3 way from the bottom over the number, kind of crossing the number out. A bit similar to
this. Here is a snapshot of how it looks like:
I am using Firefox 7.0.1 for Ubuntu. I'm using Ubuntu 11.10.