thanks all for your immediate help! For all who do not know, you can download the conversion programs (Win->MAC, and MAC -> Win) from the ABI site: www.appliedbiosystems.com/support/software/3100/conversion.cfm regards Walter -- **** Register for "Plant Population Biology" *** A conference from 24.05.-27.05.2006 in Halle, Germany * Dr. Walter Durka Dr. Walter Durka UFZ - Centre for Environmental Research Leipzig-Halle UFZ - Umweltforschungszentrum Leipzig-Halle Dept. Community Ecology Department Biozönoseforschung Theodor-Lieser-Strasse 4 Theodor-Lieser-Str. 4 06120 Halle 06120 Halle Germany Deutschland Tel.: (+49)345/558-5314 Tel.: 0345/558-5314 Fax: (+49)345/558-5329 Fax: 0345/558-5329 email: walter.durka@ufz.de INVASIONS: http://www.ufz.de/index.php?en=2773 Home: http://www.ufz.de/index.php?en=798 walter.durka@ufz.de