Thanks,
that helped a lot. It's much more narrow now.
But through that came another problem: I had written nearly everything as a
list to have some more horizontal space before the lines.
Even with C-M-formulas I did this and that caused a lot of vertical space.
Now I changed those into "standard". The vertical space is ok - but the
horizontal space before that line is gone.
Like mentioned in Uwe Stöhr's Math-manual I chose "fleqn" and
"\setlength{\mathindent}{0mm}" in the latex-prefix to have a just
left-intent.
How can I add more intention to a normal Standard-line?
Thank's for your help!
Matthias Diehl