This isn't a bug, but it's definitely a recurring problem that people run into when moving to XeTeX or XeLaTeX.
XeTeX and XeLaTeX don't set up TeX-based ligatures by default, possibly because they support direct UTF-8 input. To get the ligatures, enter the following after your \usepackage{fontspec}: \defaultfontfeatures{Mapping=tex-text} However, if you're still using the Computer Modern fonts, this won't work, since it will only map fonts loaded after the fontspec inclusion. To ensure that ligatures are enabled for Computer Modern fonts, add the cm-default option to fontspec: \usepackage[cm-default]{fontspec} \defaultfontfeatures{Mapping=tex-text} See here for more information: http://www.tug.org/pipermail/xetex/2007-October/007535.html Also, I don't know anything about the 'polski' package; it's possible that it might not be XeLaTeX-compatible (on the other hand, it might be). If you're looking to support other languages, and you need something that basic Unicode support doesn't provide, the polyglossia package might be helpful, though it requires a newer version of XeLaTeX than Debian ships. Adam Buchbinder -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org