I thought I started a new thread here but now can't find it so I probably posted in the wrong place. If so, sorry. I was installing Kubuntu 11.04 following the HowtoForge perfect desktop pages. I had reached the stage of updating and the update appeared to stall at preparing linux-image-generic. After a long wait (>15 minutes) I tried a restart and then update again. The update page now shows a ! Warning Sorry - KDE Control Mo.... and 'An unknown error happened' with an 'OK' tick option. Being completely new to Linux/Ubuntu/Kubuntu I have no idea how to proceed.