I've installed F17 from the minimal system and I'm building it up.
I've installed beesu but it works only from the terminal, where I can enter my root password. If I try to launch it from a run box then it doesn't work because it doesn't pop-up that password box.
I remember in my installation where I had started with the Xfce spin and customized, at some point while removing packages I think that happened and then I reinstalled the needed package(s). Probably some old-style stuff (now apps use that policykit dialog) that came with the red-hat tools.
Posting just in case anybody knows.