Text Formatting ⇒ Double dash?

[hub]

The preloaded packages is babel, graphics, lmodern, frontenc, inputenc, theorem, amsmath, amsfonts, amssymb and hypreref according to the documentation.
I dont know which packages thats loading fonts, except amsfonts.

[phi]

The Computer Modern and the Latin Modern fonts (loaded by lmodern) indeed exhibit this behavior when used with T1 encoding, unlike the default OT1 encoding. Here is a discussion alongside a good solution that uses the microtype package:
http://groups.google.de/group/comp.text ... 13f69e639d
For the record: put

Code: Select all

\usepackage{microtype}
\DisableLigatures{encoding = T1, family = tt*}

in the preamble.