Hi James, Thanks for your email. I'm sorry if the order of my recent email was a bit deceptive. The version I gave was what I was running before I upgraded. Thanks to Gordon's comments yesterday, I did upgrade to the latest (July 21) version of limma. I guess, before this, I had assumed that if I upgraded from the BioConductor site, it would be the most up to date version of a package. Looking at this assumption now, I can see how silly it was! cheers, Bela ************************* Dr. Bela Tiwari Lead Bioinformatician CEH Oxford Mansfield Road Oxford, OX1 3SR 01865 281975 ************************* >>> James Wettenhall <wettenhall@wehi.edu.au> 17/08/2004 15:28:09 >>> Hi Bela, On Tue, 17 Aug 2004, Bela Tiwari wrote: > I have now upgraded to the latest version of limma from the wehi site. <snip> > > packageDescription("limma") > Package: limma > Version: 1.6.7 > Date: 2004/05/14 This is not the latest version of limma. This is the last Bioconductor Release version from May 14. The WEHI limma webpage: http://bioinf.wehi.edu.au/limma/ says: The current version of LIMMA is 1.7.4 dated 21 July 2004. Maybe you have multiple R library directories, and you have installed the latest limma in one library directory, but are still loading R packages from another library directory. Check your .libPaths() Hope this helps, James