Guoqiang, First off, I am responding to you on the Ifeffit mailing list, which is the appropraite venue for questions about Ifeffit and related software. please use the mailing list for all future correspondance. I am not completely clear on what you are asking about, but I suspect that your problem is that Ifeffit isn't plotting anything. That is, I suspect that you have managed to compile pgplot and you have managed to compile Ifeffit, but you do not have pgplot and ifeffit talking to one another. The reason for this is that you said $ ./configure --without-pgplot This builds Ifeffit without pgplot support. What I think you want to do is to use the "--with-pgplot=dir" argument for "configure". That, you should do something like $ ./configure --with-pgplot=/usr/local/share/pgplot where you would, of course, specify, the actual installation location of pgplot on your computer. You will then need to remake and reinstall ifeffit. If that doesn't solve the problem, try asking again on the mailing list, where other knowledgeable people can offer their advice as well. Regards, B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/