Same bug with the normal Kubuntu 11.04 Natty Narwhal, with kernel 2.6.38-10-generic, kde version 4.6.2. Only way to use kde again was a sudo apt-get remove plasma-widget-fancytasks.
Same bug with the normal Kubuntu 11.04 Natty Narwhal, with kernel 2.6.38-10-generic, kde version 4.6.2. widget- fancytasks.
Only way to use kde again was a sudo apt-get remove plasma-