(gnome-mouse-properties:8484): capplet-common-WARNING **: Unable to find a default value for key for /desktop/gnome/peripherals/mouse/motion_acceleration.
I'll assume it is an integer, but that may break things.
Please be sure that the associated schema is installed

(gnome-mouse-properties:8484): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed

(gnome-mouse-properties:8484): GConf-CRITICAL **: gconf_value_get_float: assertion `value->type == GCONF_VALUE_FLOAT' failed

(gnome-mouse-properties:8484): GConf-CRITICAL **: gconf_value_get_float: assertion `value->type == GCONF_VALUE_FLOAT' failed