Important software updates are available...

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http://forums.fedoraforum.org – I upgraded from Fedora 15 to 17 with mostly no problems and it is working fine. However, every now and again I get a notification that "Important software updates are available". When I click on the button to install them, it displays the list of updates and I can click "Install Updates". When I do this, it looks like it is installing the first one but then stops and tells me it failed to obtain authentication. It never asked me for authentication! Should I just do a yum update and ignore this mechanism? What's the scoop? Thanks, D (HowTos)