Sorry Herbert I lost your mail, but I readed: http://www.educat.hu-berlin.de/~voss/lyx/language/hyphen.html#wrong and wasn't useful to me :(
I executed texconfig -> hyphen -> latex (and appeared the same file I edited before: /etc/texmf/language.dat) I tried to edit /usr/share/texmf/tex/platex/config/language.dat with the same results. Then I ran again texconfig -> hyphen ->latex uncommentig the path to the hyphen files: /usr/share/texmf/tex/generic/hyphen (then I lost the hyphen in the output DVI) All the times I ran texhash, lyx reconfigure, close lyx, open and the same error: "Language: spanish 1999/04/19 v3.4i Spanish support from the babel system Package babel Warning: No hyphenation patterns were loaded for the language 'Spanish' I will use the patterns loaded for |language=0 instead. \l@spanish = a dialect from \language0"
