Ever since I updated to 14.04 (from 13.10), each time I launch the Software Updater, it shows on the list of updates "ffmpeg derived postprocessing library". Yet, it also says on the same window about the ffmpeg update: 'The update has already been downloaded'!!?. When I then click on Install Now, it says about the ffmpeg update: 'Package operation failed. The installation or removal of a software package failed.' I can't say I've a clue what to do with this update.
How do I stop it being listed on the list of updates each time I fire the Software Updater?
More importantly, do I need to have that update? Have to say, the computer as such seems to be working all right. Can't say I've noticed anything...so far any way :)
Would be grateful for any answers to any of the Qs above.