Hi Patrick, Yes. I can also read it in nmrPipe format, but it doesnt make any difference. I selected the option to show negative peaks it also doesnt help. Indeed nmrview also crashes if i try to draw this spectrum, so perhaps it could be something related to NMRPipe.... On Thursday 22 March 2007 23:35, Patrick van der Wel wrote: > Roberto Kopke Salinas wrote: > > program opens it without error messages. I can view slices from the > > spectrum, but the peaks are not displayed. Is this a problem with the > > conversion with pipe2azara, or something else? > > > > The spectrum is displayed correctly with nmrDraw.... > > Does this mean you are converting it to azara format before opening? Can > you read it directly into analysis in pipe-format or even as sparky/ucsf > format (after using pipe2ucsf from the sparky software)? > > It wouldn't happen to have negative rather than positive peaks by > chance? Analysis does not appear to show negative contours by default > (you can enable it in the program) > > Patrick - Roberto Kopke Salinas Instituto de Química Universidade de São Paulo Av Prof Lineu Prestes 748 05508-900 São Paulo SP Brasil Tel: #55-11-3091-3312 r. 110