Laptops :: tpconfig on Inspiron 3200

I've installed tpconfig via "apt-get install tpconfig" onto my Dell Inspiron 3200 and am trying to get it setup so that my tapping is disabled on the touchpad.

I have edited the tpconfig.conf file and added the following to it:
OPTIONS=--tapmode=0

After a reboot, the touchpad is still working. I then set it so that the touchpad would be reset:
RESET_P=true

Rebooted again, and the touchpad still is accepting taps.

Has anyone experienced this before that can give me some advice?

Thanks.

original here.