Some more comments below:
using LyX 1.6.4 on Win Vista the tutorial on xypic does not show the
examples porperly on my machine: only arrwos without any arrowheads
are displayed in instant preview, any other entries are simply
ignored.
I have checked in a new document with "\usepackage[all]{xy}" in the
preamble that the instant preview feature works perfectly fine.
- some links in the reference list are dead
- instant preview does not show all examples in the tables correctly
- symbols in the text are blanks
Could it be that the shortcomings were created by compiling the lyx
doc from another doc?
Greets,
J.