Thanks Herbert for the reply.
These are the results of kpsewhich for the .pro files:
/usr/local/teTeX/share/texmf.tetex/dvips/pstricks/pst-node.pro /usr/local/teTeX/share/texmf.tetex/dvips/pstricks/pst-dots.pro /usr/local/teTeX/share/texmf.tetex/dvips/pstricks/pstricks.pro
ok.
I generated the .pdf file (File|Export|PDF) from boxNode.lyx and it shows exactly what is on http://www.pstricks.de/Nodes/nodes.phtml
ok, but only with the ps2pdf export and not with pdflatex.
Attached is the Lyx file.
With this file evrything is okay. So let's find the problem: Write into the "Layout->Document->Preamble" as first line
\listfiles
then run "View->PostScript" And now have a look into your logfile "View->LaTeX Logfile". At the end you should have a list of all files, like:
*File List* article.cls 2001/04/21 v1.4e Standard LaTeX document class size10.clo 2001/04/21 v1.4e Standard LaTeX file (size option) fontenc.sty t1enc.def 2001/06/05 v1.94 Standard LaTeX file inputenc.sty 2001/07/10 v0.99a Input encoding file latin1.def 2001/07/10 v0.99a Input encoding file ifthen.sty 2001/05/26 v1.1c Standard LaTeX ifthen package (DPC) pst-node.sty 1997/03/25 package wrapper for PSTricks pst-node.tex babel.sty 2001/03/01 v3.7h The Babel package english.ldf 2001/04/15 v3.3l English support from the babel system t1cmtt.fd 1999/05/25 v2.5h Standard LaTeX font definitions ***********
the best way is to send me the logfile, which is available in the temp dir, with Linux /tmp/lyx-....
Herbert