Hi, I was looking for the cdf file for the Affy Ath1 (Arabidopsis full genome) chip on your site for use with the affy package, but was unable to locate it. Could you please advise? Thx, Jan Lohmann ----------------------------------------------- Dr. Jan U. Lohmann Department of Molecular Biology Max Planck Institute for Developmental Biology Spemannstrasse 37-39 72076 Tuebingen Germany Office: +49 7071 601 1413 Lab: +49 7071 601 1405 Fax: +49 7071 601 1412 jlohmann@tuebingen.mpg.de