In the forums? I don't see anything like that in the forums, if your referring to the frontpage do you mean this:
or enlarged:
<img src="http://forum.dead-donkey.com/favicon.ico" width=90>
Doesn't show up very well but its a zombie from resident evil for the PC
Short answer is, if your referring to that, I was pissing about with favicons about a year ago... its nothing new, although it doesn't show up for the forums for me.
If its something else, I dunno I haven't noticed anything, you'll have to take a screenshot