Jean-Marc Lasgoutte écrivait : > I would say that the problem is in the % (comment character in latex). > Do you have the package url.sty?
Yes, the package is in /usr/share/texmf/tex/latex/misc/. But, whithout using this package in the preambule, I opened another LyX file and I had the "offending" URL towards the end of the file with no problem. I then try again with a blank LyX file and I inserted the URL (Insérer->Url) again without problem... Well, I really dont't understand this behavior; like I said before I had this problem two different times. Thank you for your hints and explanations! Raymond -- Édité et transmis avec des logiciels libres sous Linux !