Hi, I want to save the image produced by heatmap.2 in a tiff file. To do so, I call tiff(filename ='test.tiff', res = 300) heatmap.2(c2, col = greenred(200),labCol = "", labRow = "",breaks = seq(-3,3,0.03), trace = "none", dendrogram = "none", keysize = 2, scale = "none") But I get the following error message after the call of heatmap.2 Error in plot.new() : unimplemented cairo-based device Error in par(op) : invalid value specified for graphical parameter "pin" I use R version 2.9.1, system x86_64, linux-gnu Look forward to your reply, Carol [[alternative HTML version deleted]]