the title is descriptive. need to use different holiday calendars in different moments (I travel a lot) and since last upgrade to 14.04, in one of my computers (the one I need to travel) all regions of my holiday calendar appear as unknown, for both selecting which to use or when showing holidays. When a region is subdivided, subdivisions are ok, but those are generally languages. libkholidays4 is instaled, when a holiday calendar is chosen it is displayed, but as the name is "unknown" I cannot quickly select regions. hope will have some help, thanks in advance.