kubuntu 20110207, ubiquity crash

Binary package hint: ubiquity

Hello
During install ubiquity crash at timezone selection and partman at 33% with this output
Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 163, in paintEvent
    x,rw = drawRow(keys[i], x, y, i==1 and not ext_return)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 126, in drawRow
    p.drawText(rect, Qt.AlignLeft | Qt.AlignBottom, self.regular_text(k))
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 210, in regular_text
    return self.codes[index - 1][0]
IndexError: list index out of range

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: ubiquity 2.5.14
ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
Uname: Linux 2.6.38-2-generic x86_64
Architecture: amd64
Date: Wed Feb 9 20:58:36 2011
LiveMediaBuild: Kubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110207)
ProcEnviron:
 LANGUAGE=
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity