Can't drag & drop start menus because of this
As someone who is anal about keeping his start menus organised, one annoying side effect of this change is that you can no longer use the mouse to drag and reorganise the start menu as in XP. Since every program that is installed insists on creating its own start menu hierarchy, I find this really annoying.
I achieved a bit of a work-around by placing both my personal start menu folder and the all users start menu folder in "Favorites". Then at least I can quickly access the menus and use Mark's techniques to reorganize the start menu.
Richard