Please see the image above. It is of the exact same view. The top is Safari running in OSX and the bottom is IE7 under Windows XP. (running under Parallels).
Can you see the difference in the swap lists? Am I doing something wrong or is this a problem?
In this case it could be a configuration problem. You have a number of visible items for the swap list control set to 1. You need to set it to a larger number and it should be OK. Safari somehow manages to still display the control correctly.