La génération automatique d'affiche a rencontré un problème: <HR>
<PRE>This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
 %&-line parsing enabled.
entering extended mode
(/tmp/poster.tex
LaTeX2e <2005/12/01>
Babel <v3.8h> and hyphenation patterns for english, usenglishmax, dumylang, noh
yphenation, arabic, basque, bulgarian, coptic, welsh, czech, slovak, german, ng
erman, danish, esperanto, spanish, catalan, galician, estonian, farsi, finnish,
 french, greek, monogreek, ancientgreek, croatian, hungarian, interlingua, ibyc
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
(/usr/share/texmf/tex/latex/base/size12.clo))
(/usr/share/texmf/tex/latex/psnfss/times.sty)
(/usr/share/texmf/tex/generic/babel/babel.sty
(/usr/share/texmf/tex/generic/babel/english.ldf
(/usr/share/texmf/tex/generic/babel/babel.def))
(/usr/share/texmf/tex/generic/babel/frenchb.ldf
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* Local config file frenchb.cfg used
*
(/usr/share/texmf/tex/generic/babel/frenchb.cfg)))
(/usr/share/texmf/tex/latex/base/inputenc.sty
(/usr/share/texmf/tex/latex/base/latin1.def)) (./poster.aux)
(/usr/share/texmf/tex/latex/lm/t1lmr.fd)
(/usr/share/texmf/tex/latex/psnfss/ot1ptm.fd)
(/usr/share/texmf/tex/latex/psnfss/ot1phv.fd)
Overfull \hbox (6.79999pt too wide) in paragraph at lines 32--52
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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 <return>  for immediate help.
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l.95 ...te the lessons this holds when the system’
                                                  s symmetry is generated by...

? 
! Emergency stop.
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l.95 ...te the lessons this holds when the system’
                                                  s symmetry is generated by...

No pages of output.
Transcript written on poster.log.
</PRE> <HR> Si vous en avez la possibilité,
merci de bien vouloir corriger les informations erronées.