I can confirm that
sudo aptitude upgrade sudo aptitude install kde-window-manager kdebase-bin kdebase-workspace kdebase-workspace-bin kdepasswd kdm kinfocenter ksysguard kubuntu-desktop kubuntu-konqueror-shortcuts libplasmaclock4b plasma-dataengines-workspace plasma-desktop plasma-netbook plasma-widgets-addons plasma-widgets-workspace rekonq sudo aptitude upgrade
Fixed it for me
I can confirm that
sudo aptitude upgrade workspace- bin kdepasswd kdm kinfocenter ksysguard kubuntu-desktop kubuntu- konqueror- shortcuts libplasmaclock4b plasma- dataengines- workspace plasma-desktop plasma-netbook plasma- widgets- addons plasma- widgets- workspace rekonq
sudo aptitude install kde-window-manager kdebase-bin kdebase-workspace kdebase-
sudo aptitude upgrade
Fixed it for me