Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/frontend/kde-ui.py", line 2134, in index
    childItem = parentItem.child(row)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde-ui.py", line 2174, in child
    return self.childItems[row]
IndexError: list index out of range