os : lenny 5.0.4 i have run gsynaptics from command line : $ gsynaptics
and it has shown the following error : GSynaptics couldn't initialize. You have to set 'SHMConfig' 'true' in xorg.conf or XF86Config to use GSynaptics i have edited the file of /etc/X11/xorg.conf and added support for synaptics. Section "InputClass" Identifier "enable synaptics SHMConfig" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "synaptics" Option "SHMConfig" "on" EndSection but, when i try to run # dpkg-reconfigure -phigh xserver-xorg, i am receiving the following error : xserver-xorg postinst warning: overwriting possibly-customised configuration file; backup in /etc/X11/xorg.conf.20100928233119 how should i overcome the above error.