Hello, I seem to have a problem accessing the functions in the 'affy' library even though the package is apparently loading: the search() command lists affy as one of the available libraries that I have loaded (this is all on OSX). One difference compared to loading the library in R on a labmate's Unix machine seems to be that I don't get a nice welcome message from Bioconductor after the command 'library(affy)'. Does anybody have any suggestions as to why affy is not apparently working? thanks, Matt -- Matthew W. Hahn Center for Population Biology 2320 Storer Hall University of California Davis, CA 95616