Choose a question you haven't voted on yet, click on the rating so it will show the amount of upvotes and downvotes. After that, vote on it. If the question has a rating of -15, it will show "16" instead of "-14".
EDIT:
Now with freehand circles and drop shadows, enjoy
alt text http://uploads.segfaulting.com/1.PNG alt text http://uploads.segfaulting.com/2.PNG
Now a bounty since this bug really bugs me. No pun intended!
4 - 1 = 3
, yet it shows 5(4 - (-1))
. The same thing would happen if I'd downvote you. It would still show 5(3 - (-2))
.