-Can't open gnome-orca - problem with python

[BlueEgg]

Hi!
After upgrading to ubuntu 12.04 I can't open gnome-orca.
When I want to open orca I get always this error message:



Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/orca/orca.py", line 396, in
<module>
_settingsManager = SettingsManager()
File "/usr/lib/python2.7/dist-packages/orca/settings_manager.py",
line 126, in __init__
self.setProfile(self.profile)
File "/usr/lib/python2.7/dist-packages/orca/settings_manager.py",
line 344, in setProfile
self._setSettingsRuntime(self.general)
File "/usr/lib/python2.7/dist-packages/orca/settings_manager.py",
line 358, in _setSettingsRuntime
self._setPronunciationsRuntime()
File "/usr/lib/python2.7/dist-packages/orca/settings_manager.py",
line 365, in _setPronunciationsRuntime
pronunciation_dict.setPronunciation(key, value)
File "/usr/lib/python2.7/dist-packages/orca/pronunciation_dict.py",
line 66, in setPronunciation
key = word.decode("UTF-8").lower().encode("UTF-8")
File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe4' in
position 1: ordinal not in range(128)


Can someone help me solving this problem?

Thank you very much

BlueEgg