[tuvoc]

i'm using Docudesk deskunpdf in OSX to convert pdf to lrf, but when I try to view them in calibre (0.5.14) i get this error

KeyError: 0
Failed to render document
Detailed traceback:
Traceback (most recent call last):
File "/Volumes/calibre-0.5.14/calibre.app/Contents/console.app/Contents/Resources/lib/python2.6/site-packages.zip/calibre/gui2/lrf_renderer/main.py", line 33, in run
self.lrf.parse()
File "/Volumes/calibre-0.5.14/calibre.app/Contents/console.app/Contents/Resources/lib/python2.6/site-packages.zip/calibre/ebooks/lrf/lrfparser.py", line 28, in parse
self._parse_objects()
File "/Volumes/calibre-0.5.14/calibre.app/Contents/console.app/Contents/Resources/lib/python2.6/site-packages.zip/calibre/ebooks/lrf/lrfparser.py", line 56, in _parse_objects
obj.initialize()
File "calibre/ebooks/lrf/objects.pyo", line 848, in initialize
File "calibre/ebooks/lrf/objects.pyo", line 789, in plot
KeyError: 0



any ideas? Thanks