voeg aan het einde eens /end{document} toe om eerst maar eens het bestand kloppend te maken
hier heb je een lijst van texprogramma's die ik heb geinstalleerd, vergelijk maar eens of er packages in zitten die je zelf niet hebt, en iets met die foutmelding te maken heeft
dpkg -l | grep texlive
ii texlive 2007-10 TeX Live: A decent selection of the TeX Live
ii texlive-base 2007-10 TeX Live: Essential programs and files
ii texlive-base-bin 2007-12ubuntu3.1 TeX Live: Essential binaries
rc texlive-bibtex-extra 2007-3 TeX Live: Extra BibTeX styles
ii texlive-common 2007-10 TeX Live: Base component
ii texlive-doc-base 2007-3 TeX Live: Base documentation
rc texlive-doc-bg 2007-3 TeX Live: Bulgarian documentation
rc texlive-doc-cs+sk 2007-3 TeX Live: Czechslovak documentation
rc texlive-doc-de 2007-3 TeX Live: German documentation
rc texlive-doc-el 2007-3 TeX Live: Greek documentation
rc texlive-doc-en 2007-3 TeX Live: English documentation
rc texlive-doc-es 2007-3 TeX Live: Spanish documentation
rc texlive-doc-fi 2007-3 TeX Live: Finnish documentation
rc texlive-doc-fr 2007-3 TeX Live: French documentation
rc texlive-doc-it 2007-3 TeX Live: Italian documentation
rc texlive-doc-ja 2007-3 TeX Live: Japanese documentation
rc texlive-doc-ko 2007-3 TeX Live: Korean documentation
rc texlive-doc-mn 2007-3 TeX Live: Mongolian documentation
ii texlive-doc-nl 2007-3 TeX Live: Dutch documentation
rc texlive-doc-pl 2007-3 TeX Live: Polish documentation
rc texlive-doc-pt 2007-3 TeX Live: Portuguese documentation
rc texlive-doc-ru 2007-3 TeX Live: Russian documentation
rc texlive-doc-th 2007-3 TeX Live: Thai documentation
rc texlive-doc-tr 2007-3 TeX Live: Turkish documentation
rc texlive-doc-uk 2007-3 TeX Live: Ukrainian documentation
rc texlive-doc-vi 2007-3 TeX Live: Vietnamese documentation
rc texlive-doc-zh 2007-3 TeX Live: Chinese documentation
ii texlive-extra-utils 2007-12ubuntu3.1 TeX Live: TeX auxiliary programs
ii texlive-font-utils 2007-12ubuntu3.1 TeX Live: TeX font-related programs
rc texlive-fonts-extra 2007-3 TeX Live: Extra fonts
ii texlive-fonts-recommended 2007-10 TeX Live: Recommended fonts
ii texlive-formats-extra 2007-3 TeX Live: Extra formats
rc texlive-games 2007-3 TeX Live: Games typesetting (chess, etc)
ii texlive-generic-extra 2007-3 TeX Live: Miscellaneous extra generic macros
rc texlive-generic-recommended 2007-10 TeX Live: Miscellaneous generic macros
rc texlive-humanities 2007-3 TeX Live: LaTeX support for the humanities
ii texlive-lang-dutch 2007.dfsg.1-3 TeX Live: Dutch
ii texlive-latex-base 2007-10 TeX Live: Basic LaTeX packages
ii texlive-latex-extra 2007-3 TeX Live: LaTeX supplementary packages
ii texlive-latex-recommended 2007-10 TeX Live: LaTeX recommended packages
rc texlive-latex3 2007-3 TeX Live: LaTeX3 packages
rc texlive-math-extra 2007-3 TeX Live: Advanced math typesetting
ii texlive-metapost 2007-12ubuntu3.1 TeX Live: MetaPost (and Metafont) drawing pa
ii texlive-music 2007-12ubuntu3.1 TeX Live: Music typesetting
ii texlive-omega 2007-12ubuntu3.1 TeX Live: Omega
ii texlive-pictures 2007-10 TeX Live: Packages for drawings graphics
rc texlive-plain-extra 2007-3 TeX Live: Plain TeX supplementary packages
rc texlive-pstricks 2007-3 TeX Live: PSTricks packages
rc texlive-publishers 2007-3 TeX Live: Support for publishers
rc texlive-science 2007-3 TeX Live: Typesetting for natural and comput
ii texlive-xetex 2007-12ubuntu3.1 TeX Live: XeTeX macros
ikzelf heb wel veel extra packages geinstalleert