It looks like that dialog should be displayed if the "/var/lib/PackageKit/prepared-update" file exists, which is what packagekit used to prepare offline updates. Those shouldn't happen on Ubuntu though. Do you have that file on your disk? What's the timestamp for it?
It looks like that dialog should be displayed if the "/var/lib/ PackageKit/ prepared- update" file exists, which is what packagekit used to prepare offline updates. Those shouldn't happen on Ubuntu though. Do you have that file on your disk? What's the timestamp for it?