> What I do not understand is:If you compare LyX 1.3 and LyX 1.6 on the same > system (using the same LaTeX installation), do you see a delay then?
As far as I remember: no. But I remember that it was extremly difficult to install 1.4 on the SuSE Linux, because of YAST, which sticks to the lyx, that came with the distribution. (And I'm not such a Linux Pro that I could override this). I just installed a newer Linux with a newer Lyx and was very surprised to find out, that everything was slow suddenly.