Export fails on Windows

[Jendrik Seipp]

When I try to export no new files can be found and I have this in the log:

2010-05-01 17:35:07,186 DEBUG Selected Categories for Export: [u'Movies', u'Done', u'Tags', u'Cool Stuff', u'Todo', u'Ideas']
Traceback (most recent call last):
  File "rednotebook\gui\exportAssistant.pyc", line 188, in on_quit
  File "rednotebook\gui\exportAssistant.pyc", line 346, in export
  File "rednotebook\gui\exportAssistant.pyc", line 382, in get_export_string
  File "rednotebook\util\markup.pyc", line 67, in getMarkupForDay
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 3-7: unsupported Unicode code range
Traceback (most recent call last):
  File "rednotebook\gui\keepnote\gui\richtext\__init__.pyc", line 833, in _do_paste_object
  File "rednotebook\gui\keepnote\gui\richtext\richtextbuffer.pyc", line 622, in insert_contents
  File "rednotebook\gui\keepnote\gui\richtext\textbuffer_tools.pyc", line 303, in insert_buffer_contents
  File "rednotebook\gui\keepnote\gui\richtext\richtextbasebuffer.pyc", line 34, in add_child_to_buffer
  File "rednotebook\gui\keepnote\gui\richtext\richtextbuffer.pyc", line 734, in add_child
  File "rednotebook\gui\keepnote\gui\richtext\richtextbuffer.pyc", line 819, in _determine_image_name
NameError: global name 'keepnote' is not defined