Jörg Haug wrote:
> I want to change the horizontal line. Now i used
> \setlenght{\doublerulesep}{0.5pt} before the table and after the table i set it
> back to 2pt.
sorry, I should have read well
a better solution may be in latex preamble
\newlength{\myHarrayrulewidth}
\setlength{\myHarrayrulewidth}{\arrayrulewidth}% the default
\renewcommand\hline{%
\noalign{\ifnum0=`}\fi\hrule \@height \myHarrayrulewidth \futurelet
\reserved@a\@xhline}
and anywhere in the text in tex(red) or in preamble if it's
a documentwide definition
\setlength{\myHarrayrulewidth}{3pt}% the default
--
http://www.educat.hu-berlin.de/~voss/lyx/
