Hi, I am Running R-2.0 and BioC with develOK = TRUE latest version on my linux. I already have graphviz installed. Below commnad for plotting GO graph was working when I had R.1.9.1 and was nice. But I think R-2.0 has some thing going on. > gGOCC <- makeGOGraph(myUNQLL,"CC"); > plot(gGOCC); Error in .local(x, y, ...) : Object "drawAgNode" not found > traceback(); 6: .local(x, y, ...) 5: plot(g, xlab = xlab, ylab = ylab, main = main, sub = sub) 4: plot(g, xlab = xlab, ylab = ylab, main = main, sub = sub) 3: .local(x, y, ...) 2: plot(gGOCC) 1: plot(gGOCC) Please, let me know, Thank you, Saurin