YIkes! I just lost most of my Site Admin Options when I enabled plugins

I am having the worst luck with my 2.7.1 upgrade. When I enabled Plugins in the "Enable or Disable Backend Menus" area, I lost most of my Site Admin Options. YIKES. Here is a screen shot - http://blogs.bgsu.edu/files/2009/05/adminoptionsgone.png

Does anyone have any ideas on how I would go about fixing this problem? Thanks.