My /etc/pointercal: 557 38667 -4654632 -51172 121 46965312 65536 I don't thing I ever edited that file. By "calibration" above, I meant the option that I've added in my xorg.conf. -- Christophe TORDEUX 113 rue de la Barrière 19000 Tulle mob: +33-6-86-50-83-65 tel: +33-5-55-93-64-35