Hi! I have been using the marrayNorm package with R 1.6, and now, upon upgrading to R 1.9, I find both the new marray package and the deprecated marrayNorm package to run several times slower than with R 1.6 (tens of minutes instead of a couple of minutes). Any suggestions? Thanks, Sripriya Natarajan Laboratory for Systems Biology Center for Excellence in Vascular Biology Brigham and Women's Hospital