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
(/tmp/poster.tex
LaTeX2e <2005/12/01>
Babel  and hyphenation patterns for english, usenglishmax, dumylang, noh
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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.
(/usr/share/texmf/tex/latex/base/article.cls
Document Class: article 2005/09/16 v1.4f Standard LaTeX document class
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(/usr/share/texmf/tex/generic/babel/frenchb.ldf
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* Local config file frenchb.cfg used
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Package frenchb.ldf Warning: Degrees would look better in TS1-encoding: 
(frenchb.ldf)                add \usepackage{textcomp} to the preamble. 
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[1]

! 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.70 ‘
      pure’ counterparts. For instance, amorphous materials such as emulsion...

? 
! Emergency stop.
 ...                                              
                                                  
l.70 ‘
      pure’ counterparts. For instance, amorphous materials such as emulsion...

Output written on poster.dvi (1 page, 2732 bytes).
Transcript written on poster.log.

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