> Do I lack some latex package on my system?
Well I found out that g-brief has been removed due to licening issues from
Debian package tetex-extra:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=20030422124007%
244276%40gated-at.bofh.it&rnum=3&prev=/groups%3Fhl%3Den%26lr%3D%26ie%
3DIS
I looked at the layout (in /usr/share/lyx/layouts) and found the head of
"g-brief-de" as follows:
#% Do not delete he line below; configure depends on this
# \DeclareLaTeXClass[g-brief]{letter (g-brief, german)}
# Letter textclass definition file.
# Author : Thomas Hartkens <[EMAIL PROTECTED]>