pb py32exe and PIL

[Ryomanga]

As in the title I got a pb with py2exe and the PIL library.
When I use the exe i've got the following error message :

  File "Image.pyc", line 960, in open
IOError: cannot identify image file

It seems it can't read my pictures. I've try to change their format and
directory but nothing changes. Is there something special to do with PIL like
with PMW??

Thanks for your help
     Guilhèm