username@Antec:~$ olive-gtk
Traceback (most recent call last):
  File "/usr/bin/olive-gtk", line 89, in ?
    app = OliveGtk()
  File "/usr/lib/python2.4/site-packages/olive/__init__.py", line 186, in __init__
    self._load_right()
  File "/usr/lib/python2.4/site-packages/olive/__init__.py", line 656, in _load_right
    for rpath, file_class, kind, id, entry in self.wt.list_files():
  File "/usr/lib/python2.4/site-packages/bzrlib/workingtree.py", line 1032, in list_files
    raise errors.ObjectNotLocked(self)
bzrlib.errors.ObjectNotLocked: <WorkingTree4 of /home/username> is not locked