Dear Stephen,Thank you so much for your help. What I did not know was the email address "lyx-users@lists.lyx.org". I only check the list and post thing there.
Dear Paul,I have attached the two files: a LyX example and a graphic file. When I use pdflatex, everything goes fine. The problem is when I use DVI.
Thanks Mukhtar
fig_chapman.pdf
Description: Adobe PDF document
dvi_problem.lyx
Description: application/lyx