I am trying to update the three items shown on 'My Drive'. Should I completely remove my current maps prior to updating (I haven't done so before). This time I am jumping through hoops and getting nowhere. I select update all and nothing happens other than taken to remove content screen. I attempt to remove content to free up space as suggested (albeit device has enough space to accept content). This works on camera areas only. Any ideas as to what I might be doing wrong??