kpackagekit fails with authentication error in live sessions ?

I know that kpackagekit is undergoing some big changes. I mention the following in case people aren't aware of it. I was unable to install new packages with kpackagekit during both F11-live sessions and f12 rawhide live sessions due to authentication problems. I am in the process of buying a netbook computer for a project. Before I purchase, I want to make sure that it will run various pieces of software and do various things. (transcode video, run YouTube videos, etc.) A live session provides a very convenient way of testing this sort of thing because one needn't install Fedora onto a hard drive, one can easily test multiple machines, etc. However, the live iso doesn't provide all of the packages necessary to do the things I need. I thus attempted to use kpackagekit as a normal user to install several packages during the live sessions. The isos used for these sessions were: kde-i386-20091012.16.iso kde-i386-20091008.15.iso and Fedora-11-i686-Live-KDE.iso However, kpackagekit failed to install any packages at all. With each attempt kpackagekit came to the point where it required authentication to actually install the packages, then displayed an authentication request window and locked up, not allowing the user to authenticate the request. The only way to exit the process was to cancel it and try (unsuccessfully) again. Knowing that one must be superuser in order to install packages using yum, I attempted to run kpackagekit as su from the command line using $kdesu kpackagekit and #kpackagekit. Kpackagekit failed to run at all from these attempts. Thanks for listening.