Hubert Christiaen wrote: > When I use the paragraph setting in the float frame, the picture is > centered in that frame. When I insert by an ERT a '\begin{center}' and > '\end{center}', then it's not centered in the Lyx view, but it is in the > output
Again, this is not the suggested way. See here: http://www.tex.ac.uk/cgi-bin/texfaq2html?label=vertspacefloat Jürgen