Problem with the gnome package updater

Hi. I have got a problem that I hope someone could help me resolve: The last few days I haven't been able to use gpk-update-viewer to install updates. When started it dispalys an error message in a dialog window: Unable to get updates Could not process requests Opening 'More Details' reveals: Unknown filter part: unknown I've included the output from terminal running "gpk-update-viewer --debug" at the end of this report. I _can_ update packages through 'yum update' without problems. gnome-packagekit 3.0.0-5.fc15 (x86_64) This happens everytime now, whether starting the program through gui or terminal. The problem started some days ago, but I don't have the exact time. I reinstalled the package through 'yum reinstall gnome-packagekit', but it didn't help. Could this be some garbaged config files or caches? Is there a way to reset everything that I could try? Output from terminal: $ gpk-update-viewer --debug (gpk-update-viewer:7549): GnomePackageKit-DEBUG: ConsoleKit session ID: /org/freedesktop/ConsoleKit/Session2 (gpk-update-viewer:7549): GnomePackageKit-DEBUG: using native mode: 700x600 (gpk-update-viewer:7549): GLib-GIO-CRITICAL **: This application can not open files. (gpk-update-viewer:7549): PackageKit-DEBUG: notify::backend-description (gpk-update-viewer:7549): PackageKit-DEBUG: notify::version-major (gpk-update-viewer:7549): PackageKit-DEBUG: notify::groups (gpk-update-viewer:7549): PackageKit-DEBUG: notify::backend-author (gpk-update-viewer:7549): PackageKit-DEBUG: notify::backend-name (gpk-update-viewer:7549): PackageKit-DEBUG: notify::version-micro (gpk-update-viewer:7549): PackageKit-DEBUG: notify::roles (gpk-update-viewer:7549): PackageKit-DEBUG: notify::mime-types (gpk-update-viewer:7549): PackageKit-DEBUG: notify::filters (gpk-update-viewer:7549): PackageKit-DEBUG: notify::version-minor (gpk-update-viewer:7549): PackageKit-DEBUG: notify::network-state (gpk-update-viewer:7549): PackageKit-DEBUG: notify::distro-id (gpk-update-viewer:7549): PackageKit-DEBUG: role now get-updates (gpk-update-viewer:7549): GnomePackageKit-DEBUG: status finished (gpk-update-viewer:7549): GnomePackageKit-WARNING **: Kunne ikke hente oppdateringer: Unknown filter part: unknown (gpk-update-viewer:7549): PackageKit-DEBUG: notify::connected $