[CentOS] PackageKit via ssh

Hi,

I'm trying to use gnome PackageKit (gpk-application) on a centos 6 x86_64 system. When I am sitting at the machine it works ok, but most of the time I am accessing that C6 system via ssh from my centos 5 desktop. In this scenario gpk-application starts ok, lists packages, resolves deps, etc... but then it doesn't pop up the box asking for the root password, and aborts with a message "Failed to obtain authentication". I know I can use yum, but occasionally I like using a GUI to browse through available packages.

Is there any way to use PackageKit remotely via ssh?

Thanks