My question : how can I start one script as soon as screensaver start ? I try this bad solution : in "gnome-screensaver-2.14.3/src/gs-monitor.c", at the beginin of "listener_active_changed_cb", I've add this code : char *command; command = "myfoobarscript"; execv(command); but it don't work. Someone can help me ? Thanks for your help --Stéphane