Hi Marcin, Sorry for the late reply. There have been some problems with the MetaData packages on the Bioconductor site recently (for Windows users), including the annotation packages (which is how affylmGUI finds out the names of genes). I believe they have been resolved now. So hopefully you will find that this problem goes away. affylmGUI tries to automatically download the required annotation package needed to display gene names in the toptable if it is not already installed, but if there is a problem with the automatic installation of the annotation package, you can always try installing it manually, e.g. try: library(reposTools) install.packages2("rgu34a") > Hi > I am using affylmGUI package > under R 2.0.1 on windows XP. > > I have problem with getting names of genes. > > For example when I wanted to get Top Table of Genes this error occured: > /Error in mget(ls(cdfenv), env = rgu34aGENENAME) : Object > "rgu34aGENENAME" not found / > The same with "rgu34aSYMBOL" This mget command you listed above works for me now. Are you still having a problem? This sort of question really should go to the regular bioconductor mailing list (bioconductor@stat.math.ethz.ch), rather than bioc-devel. > > Would someone be able to show how manage with this problem? > Thanks > Marcin > Best wishes, James