I have been working through examples in the new book "Bioinformatics and Computational Biology Solutions Using R and Bioconductor" ISBN:0387251464 The following code chunk leads to an error message. Any ideas on what the problem could be? SessionInfo follows. library("KEGG") library("KEGGSOAP") genes <- get.genes.by.pathway("path:eco00020") Error in curlPerform(url = url, httpheader = header, postfields = txt, : Failed writing header 1: get.genes.by.pathway("path:eco00020") 2: unlist(.SOAP(KEGGserver, "get_genes_by_pathway", .soapArgs = list(pathway_id = pathway.id), action = KEGGaction, xmlns = KEGGxmlns)) 3: .SOAP(KEGGserver, "get_genes_by_pathway", .soapArgs = list(pathway_id = pathway.id), action = KEGGaction, xmlns = KEGGxmlns) 4: curlPerform(url = url, httpheader = header, postfields = txt, writeFunction = bodyDataFun$update, headerFunction = headerDataFun$update, .opts = .opts) R version 2.2.0, 2005-08-29, i386-pc-mingw32 attached base packages: [1] "tools" "methods" "stats" "graphics" "grDevices" "utils" "datasets" "base" other attached packages: KEGGSOAP SSOAP RCurl XML KEGG limma affy reposTools Biobase RWinEdt "1.1.1" "0.2-1" "0.5-1" "0.97-8" "1.8.1" "2.0.8" "1.7.2" "1.6.2" "1.7.0" "1.7-3" Mark W. Kimpel MD ? Official Business Address: ? Department of Psychiatry Indiana University School of Medicine Biotechnology, Research, & Training Center 1345 W. 16th Street Indianapolis, IN 46202 ? Preferred Mailing Address: ? 15032 Hunter Court Westfield, IN? 46074 ? (317) 490-5129 Home, Work, & Mobile 1-(317)-536-2730 FAX