hildon-application-manager 2.2.71 connected to c5f30a20-c7d9-4413-91bd-a552c581b13d W: GPG error: http://ftp.mozilla.org fremantle Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 667387BFFF445C24 W: GPG error: http://moff.mozilla.com fremantle Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 667387BFFF445C24 E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_apps_._Pac kages E: The package lists or status file could not be parsed or opened. E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_apps_._Pac kages E: The package lists or status file could not be parsed or opened. this is what i encounter... any advice?