Maybe I'm still not explaining it right. "Use animations" had something to do with it because unchecking it will stop this behavior, and checking it will enable the behavior.
I just tried the change you recommended and unfortunately it did not make a difference.
Perhaps this will help - here is a video of what I'm seeing:
http://www.flickr.com/photos/ronmichael/7907316542/
I do notice that if I go into the Windows system preferences, advanced performance or something like that, and I enable Slide menus down, the popping effect is somewhat less annoying. It doesn't seem to pop on the first menu click but will pop if I move to another menu item.