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Hi: I am trying to generate presentations using the six styles describing in art-pres.pdf doc by Hans Hagen. I had not problems with the original style but yes with the others styles. I suspect that something about metapost configuration is failing. In the section called Running METAPOST of the cited doc I can read something about two documents: 1) cont-sys.tex: I have not this file. I believe that I have that rename the cont-sys.rme file as cont-sys.tex, but in which directory I must to copy cont-sys.tex file? 2) textmf.cnf: I had not be able to find it. What can I do in order to enable \write18? Thanks a lot. Eduardo F. Cassiraga Departamento de Ingeniería Hidráulica y Medio Ambiente Universidad Politécnica de Valencia C/. Camino de Vera, s/n 46022 Valencia - SPAIN Tel: +34 963 879 613 Fax: +34 963 877 618 E-mail: efc@dihma.upv.es