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
