I use Debian Squeeze x86-64 (Kernel 3.2) with gdm3 and GNOME on a 2010 MacBook Pro.
Recently, as I tried changing the pointer configuration, I accidentally set the minimum speed of the pointer to 0 using the "Gpointing device settings" program. Now my GNOME desktop is completely unusable because the pointer will not move. I am sure that a configuration file with the pointer settings is somewhere in /etc, but editing the xorg.conf file is not an option because it does not exist on my system.
Where is this configuration file located or is there a way to circumvent default pointing-device settings?