This plugin may has conflict with FarrMilk plugin. I come across the same problem like you.
And I remove/setup each plugin for testing. Finally figure out that after typing gp the setting dialog of GooglePlus popout when
put FarrMilk and GooglePlus together.
Hope the author can fix this since I need both of these two plugins
Thank You dismory I only had about 5 plugins installed and as a new user I was lost on this one but removing the FarrMilk plugin as you suggested did the trick! But like yourself I want them both so I sure hope they can soon be compatible.
Again thanks for your post and fine detective work