Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I will be out of the office starting 31.10.2006 and will not return until 06.11.2006. I will respond to your message when I return. If necassary, please contact my colleagues: Johan Vanderhoeven +32-479-412118 [log in to unmask] Karel du Gardein +32-479-620864 [log in to unmask] Benoît Mercier +32-479-626743 [log in to unmask]