1. A method of operating an electronic device comprising: providing a first conductive line; providing a second conductive line; coupling an access device and a programmable resistance device in series between said first conductive line and said second conductive line; applying a first electrical pulse to said first conductive line, said first electrical pulse increasing the magnitude of the voltage of said first conductive line; monitoring the voltage of said first conductive line; detecting a decrease in the magnitude of the voltage of said first conductive line, said decrease occurring at a first time; detecting the voltage of said first conductive line at said first time; terminating said first electrical pulse; and applying a second electrical pulse to said first conductive line, said second electrical pulse forcing a first voltage on said first conductive line, said first voltage having a magnitude greater than or equal to the magnitude of said voltage detected at said first time.