can't run software properties

sudo software-properties
Password:
/usr/lib/python2.4/site-packages/apt/__init__.py:17: FutureWarning: apt API not stable yet
  warnings.warn("apt API not stable yet", FutureWarning)
X Error: BadDevice, invalid or uninitialized input device 166
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 166
  Major opcode: 145
  Minor opcode: 3
  Resource id: 0x0
Failed to open device
/usr/lib/python2.4/site-packages/UpdateManager/Common/SimpleGladeApp.py:335: GtkWarning: Failed to set text from markup due to error parsing markup: Błąd w wierszu 3 przy znaku 123: Element "markup" został zamknięty, lecz aktualnie otwartym elementem jest "i"
  return gtk.glade.XML(self.glade_path, root, domain)
Traceback (most recent call last):
  File "/usr/bin/software-properties", line 98, in ?
    app = SoftwareProperties.SoftwareProperties(data_dir, options, file)
  File "/usr/lib/python2.4/site-packages/SoftwareProperties/SoftwareProperties.py", line 120, in __init__
    self.init_sourceslist()
  File "/usr/lib/python2.4/site-packages/SoftwareProperties/SoftwareProperties.py", line 604, in init_sourceslist
    col_desc = gtk.TreeViewColumn(_("Software Channel"), cell_desc,
  File "/usr/lib/python2.4/gettext.py", line 568, in gettext
    return dgettext(_current_domain, message)
  File "/usr/lib/python2.4/gettext.py", line 532, in dgettext
    codeset=_localecodesets.get(domain))
  File "/usr/lib/python2.4/gettext.py", line 480, in translation
    t = _translations.setdefault(key, class_(open(mofile, 'rb')))
  File "/usr/lib/python2.4/gettext.py", line 177, in __init__
    self._parse(fp)
  File "/usr/lib/python2.4/gettext.py", line 302, in _parse
    self.plural = c2py(plural)
  File "/usr/lib/python2.4/gettext.py", line 86, in c2py
    raise ValueError, \
ValueError: plural forms expression error, maybe unbalanced parenthesis

And that's the end. :/