Carsten,

possibly the recent changes to org-mode for how external links are
handled in the latex export (if I remember some of the messages flying
by in the past week or so correctly) may have re-introduced a bug that
existed a couple of months ago.  Specifically, in some circumstances,
the appearance of "[[" in a verbatim code segment is translated into
\hyperref upon export to latex.

See the attached org file which doesn't work properly for me.

I'm using "Org-mode version 6.34trans (release_6.34c.37.g16f73)" on
"GNU Emacs 23.1.1 (i486-pc-linux-gnu, GTK+ Version 2.18.2) of
2009-11-02 on raven, modified by Debian".

thanks,
eric