Hi, Don't know all the details... BUT did you *reconfigure* after installing MikTex.
tools>reconfigure erez On Fri, Feb 20, 2009 at 10:54 AM, Edgar Ataíde <edgar.ata...@ineti.pt>wrote: > I am a newbie to Lyx, but I have several difficulties that I cannot > overcome. I made the complete installation of MiKTeX. I verified if all the > packages, available in MiKTeX, were installed namely Jhep. For my surprise > this package (article, book, report) is not available in LyX, Document > ->Settings -> Document Class. Another aspect that I do not understand is > that the Springer styles appear in Lyx at Document ->Settings -> Document > Class as unavailable although they appear as "found" in the "Latex > Configuration" (I attached this file in my mail). > > Another error I cannot overcome is the following: > > I need to use xypic package. To train myself, I tried to make some diagrams > that are in XY-pic manual, namely the diagram that is at the bottom of page > 3. This particular diagram gives me the following error, when I try to make > the PDF output: > > "TeX capacity exceeded, sorry [input stack size=5000]". > > Can you give me some help to overcome these newbie's difficulties? > > > > Best Regards > > > > > > Edgar Ataide > -- Erez Yerushalmi PhD Student Warwick University, UK http://www2.warwick.ac.uk/fac/soc/economics/research/phds/3rd_year/yerushalmi