Update Manager -> click Refresh button -> error box pops up with these 2 errors:
W: GPG error: http://archive.ubuntu.com
maverick Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <firstname.lastname@example.org>
W: GPG error: http://archive.getdeb.net
maverick-getdeb Release: The following signatures were invalid: BADSIG A8A515F046D7E7CF GetDeb Archive Automatic Signing Key <email@example.com>
what the heck? both Ubuntu and GetDeb keys are all original from the installation...
i'm connecting to main server, updates are listed and working ok...
what is the problems here ? keys need replacement ?