La génération automatique d'affiche a rencontré un problème:
This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
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entering extended mode
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LaTeX2e <2005/12/01>
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us, indonesian, icelandic, italian, latin, mongolian, dutch, norsk, polish, por
tuguese, pinyin, romanian, russian, slovenian, uppersorbian, serbian, swedish, 
turkish, ukenglish, ukrainian, loaded.
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Document Class: letter 1999/04/29 v1.2z Standard LaTeX document class
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(/usr/share/texmf/tex/latex/psnfss/times.sty) (./poster.aux)
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! Package inputenc Error: Keyboard character used is undefined
(inputenc)                in inputencoding `latin1'.

See the inputenc package documentation for explanation.
Type  H   for immediate help.
 ...                                              
                                                  
l.87 ...o quantities are related by a mysterious “
                                                  antipodal” duality, which ...

? 
! Emergency stop.
 ...                                              
                                                  
l.87 ...o quantities are related by a mysterious “
                                                  antipodal” duality, which ...

No pages of output.
Transcript written on poster.log.

Si vous en avez la possibilité, merci de bien vouloir corriger les informations erronées.