Since I reconfigured Xorg (see below /etc/X11/xorg.conf), no crashes.
# X Server Configuration file generated by kX Generator 0.3.7 # (c) 2006 Tomasz Salacinski Section "ServerLayout" Identifier "Server Layout" InputDevice "Configured Mouse" InputDevice "Generic Keyboard" Screen "Default Screen" EndSection Section "ServerFlags" Option "DefaultServerLayout" "Server Layout" EndSection Section "Files" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "XkbRules" "xorg" Option "XkbModel" "pc105" Option "XkbLayout" "fr" Option "XkbVariant" "latin9" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "evdev" EndSection Section "Device" Identifier "Configured Video Device" Driver "i810" Option "NoAccel" "True" Option "DRI" "True" Option "DDC" "True" Option "XVideo" "True" Option "DevicePresence" "True" Option "ShadowFB" "True" Option "DisplayInfo" "True" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" EndSection -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]