gDesklets can't be started. Unhandled error!

Binary package hint: gdesklets

I can't start gDesklets. I got the following error:

$ gdesklets

==========================================================[03/29/10-03:27:13]===
=== Unhandled error! Something bad and unexpected happened. ===

[EXC]_new_imp() takes at most 4 arguments (5 given)
in /usr/bin/gdesklets: line 3 <module>
in /usr/lib/gdesklets/main/__init__.py: line 52 <module>
in /usr/lib/gdesklets/utils/i18n.py: line 23 Translator
in /usr/lib/python2.6/gettext.py: line 493 translation
in /usr/lib/python2.6/gettext.py: line 180 __init__
in /usr/lib/python2.6/gettext.py: line 315 _parse
in /usr/lib/python2.6/gettext.py: line 100 c2py
[EXC]/usr/lib/python2.6/gettext.py

[---] 95 # Replace some C operators by their Python equivalents
[---] 96 plural = plural.replace('&&', ' and ')
[---] 97 plural = plural.replace('||', ' or ')
[---] 98
[---] 99 expr = re.compile(r'\!([^=])')
[ERR]> 100 plural = expr.sub(' not \\1', plural)
[---] 101
[---] 102 # Regular expression and replacement function used to transform
[---] 103 # "a?b:c" to "test(a,b,c)".
[---] 104 expr = re.compile(r'(.*?)\?(.*?):(.*)')
[---] 105 def repl(x):
[---] 106 return "test(%s, %s, %s)" % (x.group(1), x.group(2),

_______________________________
System info:

$ lsb_release -rd
Description: Ubuntu lucid (development branch)
Release: 10.04

$ apt-cache policy gdesklets
gdesklets:
  Installed: 0.36.1-4
  Candidate: 0.36.1-4
  Version table:
 *** 0.36.1-4 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/universe Packages
        100 /var/lib/dpkg/status