Dan,
Thanks for getting back to me.
> > Can you send your sessionInfo()?
> >
> > My guess is your version of R is too old--Biobase 2.18.0 requires R 2.15.
Ah, OK, this is R2.14.  I was wondering if I needed something more recent.  Updating here would be a large undertaking so before I start could I get a 'yes you definitely need R2.15'?

> Also the recommended route to installing packages, without worrying about 
> dependencies, is just
> 
>    source("http://bioconductor.org/biocLite.R")
>    biocLite("Biobase")
Unfortunately that won't work in our set-up because we run a CM system, so software is pushed out from a central server.
Regards,
-Nigel

-- 
Nigel Horne (NIH, Bethesda, MD, USA)
http://www.ncbi.nlm.nih.gov/
 		 	   		  
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