Debug on menu bar…doesn't function

Installed the debug plugin that was suggested in a Genesis article about 404’s so download it, it’s there on my dashboard, the drop down menu shows the first drop down list, but that’s it. The only function that will work is the very first one (debug). What am I doing wrong, or what am I not doing right?

Any suggestions!

http://wordpress.org/extend/plugins/debug-this/