TexLive on Solaris 10
TexLive is a very decent Latex implementation, however if you want to write DIN conformable letters using g-brief you might get an error message like that:
! LaTeX Error: Command \Telefon already defined.Or name \end... illegal, see p.192 of the manual. See the LaTeX manual or LaTeX Companion for explanation.Type H for immediate help. ... l.48 \newcommand\Telefon{\mvchr{84}}
This bug is in g-brief with newer versions of marvosym.sty. So all you have to do is edit line 48 of /texlive/texmf-dist/tex/marvosym.sty and uncomment it.
This bug might affect all unices, not only Solaris.