The procedure is to turn off the nuvi 760, place your finger on the screen, use slight pressure, no need to crunch down here - finally slide the switch to the left to turn it ON and IMMEDIATELY go right into the LOCK position. Keep pressing on the screen all the while you are doing this. After about 30 secods or so you will see the calibration screen with a small dot in the lower left of the screen. It doesn't matter whether or not you have the Security Lock enabled since the nuvi 760 will not get that far into the boot process.
